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Heavy-Duty Wrenches

In the late 1920s Snap-on began offering a line of heavy-duty box-end wrenches with stub handles, intended for use with a tubular extension handle when higher torque was needed. These wrenches were initially offered under the Blue Point brand and were available in straight and offset single-box styles.

By 1934 a series of open-end stub wrenches in both straight and offset styles had been added.

By the 1960s the heavy-duty stub wrenches had been transitioned to the Snap-on brand. As with most other Snap-on wrenches, the Snap-on heavy-duty wrenches were very similar to their Blue Point predecessors. Since the Blue Point and Snap-on models are basically the same, examples from both brands will be shown in this section.


Offset Box-End Stub Wrenches


Blue Point "Boxocket" 230 15/16 Heavy-Duty Offset Single-Box Wrench

[Blue Point Boxocket 230 15/16 Offset Single-Box Wrench]
Fig. 225. Blue Point Boxocket 230 15/16 Offset Single-Box Wrench, with Insets for Side View and Reverse Detail, 1937.

Fig. 225 shows a Blue Point 230 15/16 heavy-duty offset single-box wrench with a stub shank, stamped "Blue Point Boxocket" on the shank, with date codes "7-" and "9" for 1937 and 1939 on the reverse.

The overall length is 7.3 inches, and the finish is chrome plating.

This wrench has a nominal 5/8 diameter stub handle and is designed to work with the model 15{-A,B} tubular extension handle when greater leverage is needed. The stub handle is fitted with a small-style locking pin to secure the extension handle.


Blue Point X-340 1-1/16 Heavy-Duty Offset Single-Box Wrench

[Blue Point X-340 1-1/16 Heavy-Duty Offset Single-Box Wrench]
Fig. 226A. Blue Point X-340 1-1/16 Heavy-Duty Offset Single-Box Wrench, with Insets for Side View and Marking Detail, 1951.

Fig. 226A shows a Blue Point X-340 1-1/16 heavy-duty offset single-box wrench, stamped "Blue Point" and "Made in U.S.A." on the stub handle, with a stylized "1" date code for 1951 on the reverse.

The overall length is 8.1 inches, and the finish is cadmium plating, with some losses due to rust.

This wrench has a 11/16 nominal diameter stub handle and is intended for use with a model 18{-A,-B} tubular extension handle. The stub handle is fitted with a small-style locking pin to secure the extension handle.


Blue Point X-700 2-3/16 Heavy-Duty Offset Single-Box Wrench

[Blue Point X-700 2-3/16 Heavy-Duty Offset Single-Box Wrench]
Fig. 226B. Blue Point X-700 2-3/16 Heavy-Duty Offset Single-Box Wrench, with Insets for Side View and Marking Detail, 1948.

Fig. 226B shows a Blue Point X-700 2-3/16 heavy-duty offset single-box wrench, stamped "Blue Point" and "Made in U.S.A." on the stub handle, with a stylized "8" date code for 1948 on the reverse.

The overall length is 13.9 inches, and the finish is cadmium plating, with some losses due to rust.

This wrench has a 15/16 nominal diameter stub handle and is intended for use with a model 30{-A,-B} tubular extension handle. The stub handle is fitted with a small-style locking pin to secure the extension handle.


Blue Point X-940 2-15/16 Heavy-Duty Offset Single-Box Wrench

[Blue Point X-940 2-15/16 Heavy-Duty Offset Single-Box Wrench]
Fig. 226C. Blue Point X-940 2-15/16 Heavy-Duty Offset Single-Box Wrench, with Insets for Side View and Marking Detail, 1949.

Fig. 226C shows a Blue Point X-940 2-15/16 heavy-duty offset single-box wrench, stamped "Blue Point" and "Made in U.S.A." on the stub handle, with a stylized "9" date code for 1949 on the reverse (not shown).

The overall length is 14.6 inches, and the finish is cadmium plating, with some losses due to rust.

This wrench has a 1-1/8 nominal diameter stub handle and is intended for use with a model 36{-A,-B} tubular extension handle. The stub handle is fitted with a small-style locking pin to secure the extension handle.


Straight Box-End Stub Wrenches


Snap-on XH132A 1 Inch Heavy-Duty Single-Box Wrench

[Snap-on XH132A 1 Inch Heavy-Duty Single-Box Wrench]
Fig. 227. Snap-on XH132A 1 Inch Heavy-Duty Single-Box Wrench, with Insets for Side View and Marking Detail.

Fig. 227 shows a Snap-on XH132A 1 inch heavy-duty single-box wrench, stamped with the Snap-on logo and "USA" on the stub handle.

The overall length is 7.8 inches, and the finish is chrome plating.

This wrench has a 5/8 nominal diameter shank and is intended for use with a model 15-{A,B} tubular extension handle. The stub handle is fitted with a large-style locking pin to secure the extension handle.


Snap-on XH134A 1-1/16 Heavy-Duty Single-Box Wrench

[Snap-on XH134A 1-1/16 Heavy-Duty Single-Box Wrench]
Fig. 228. Snap-on XH134A 1-1/16 Heavy-Duty Single-Box Wrench, with Insets for Side View and Marking Detail, 1962.

Fig. 228 shows a Snap-on XH134A 1-1/16 heavy-duty single-box wrench, stamped "USA" with a stylized "2" date code for 1962.

The overall length is 7.8 inches, and the finish is cadmium plating.

This wrench has an 11/16 nominal diameter shank and is intended for use with a model 18{-A,B} tubular extension handle. The stub handle is fitted with a large-style locking pin to secure the tubular handle.


Snap-on XH136A 1-1/8 Heavy-Duty Single-Box Wrench

[Snap-on XH136A 1-1/8 Heavy-Duty Single-Box Wrench]
Fig. 229. Snap-on XH136A 1-1/8 Heavy-Duty Single-Box Wrench, with Insets for Side View and Marking Detail.

Fig. 229 shows a Snap-on XH136A 1-1/8 heavy-duty single-box wrench, stamped with the Snap-on logo and "USA" on the stub handle.

The overall length is 7.8 inches, and the finish is chrome plating.

This wrench has an 11/16 nominal diameter shank and is intended for use with a model 18{-A,B} tubular extension handle. The stub handle is fitted with a large-style locking pin to secure the tubular handle.


Open-End Stub Wrenches


Tubular Handles

Tubular extension handles for the heavy-duty wrenches were available in five sizes, with nominal lengths 15, 18, 24, 30, and 36 inches. The inside diameter of the handles increases with the length, reflecting the engineering requirement that the handle strength increase proportionally with the potential applied torque.

The nominal length of the tubular handles also serves as the base model number. The handles have gone through two model revisions, as a result of changes in the size and placement of the locking pins on the stub wrenches. The later handles will have an "A" or "B" suffix to the model number, e.g. 15-A or 24-B.


Snap-on 15-A 15 Inch Tubular Handle

[Snap-on 15-A 15 Inch Tubular Handle]
Fig. 229B. Snap-on 15-A 15 Inch Tubular Handle, with Insets for Reverse and Marking Detail, 1967.

Fig. 229B shows a Snap-on 15-A 15 inch tubular handle, stamped with "Snap-on" and "USA" around the circumference, and with a stylized "7" date code for 1967 (see composite inset).

The overall length is 15.0 inches, and the nominal inside daimeter is 5/8 inch. The finish is chrome plating.

This handle is drilled with two holes near each end, a smaller hole placed at 1.25 inches from the end, and a larger hole at 2.5 inches from the end. The two holes allow the handle to be used with wrenches having either the small or large locking pin.


Hammers and Striking Tools


Blue-Point No. 0 Ballpeen Hammer

[Blue-Point No. 0 16 Ounce Ballpeen Hammer]
Fig. 230. Blue-Point No. 0 Hammer, with Insets for Marking Detail, ca. 1950s.

Fig. 230 shows a Blue-Point No. 0 16 ounce ballpeen hammer, marked "Kenosha, Wis." and "U.S.A." on the head (see left inset).

The overall length is 13.7 inches, and the length of the head is 4.0 inches.

The right inset shows the "BPH-12" marking on the handle, a later model number for handles that came into use between 1954 and 1960.

The head on this example is marked with a No. 0 model number, an earlier numbering system used into the 1950s. By 1960 the ballpeen hammers were assigned model numbers in a "BP-" series followed by the weight in ounces, i.e. BP-16 for this model. The older model number for the head suggests a manufacturing date in the late 1950s.

Examples of ballpeen hammers from other makers can be seen in the Billings Ballpeen Hammer, Champion DeArment 3/0 Ballpeen Hammer, and Herbrand BP-16 Ballpeen Hammer.


Blue-Point Supreme S-14 Cape Chisel

[Blue-Point S-14 Cape Chisel]
Fig. 231. Blue-Point S-14 Cape Chisel, with Inset for Side View, 1954.

Fig. 231 shows a Blue-Point S-14 cape chisel, marked "Supreme" and "USA" with a date code for 1954.

The overall length is 5.7 inches.


Blue-Point Supreme S6P Cotter Pin Puller

[Blue-Point S6P Cotter Pin Puller]
Fig. 232. Blue-Point S6P Cotter Pin Puller, with Insets for Side View and Marking Detail, ca. Mid 1930s to 1940s.

Fig. 232 shows a Blue-Point S6P cotter pin puller, stamped "Supreme" and "Made in U.S.A." on the shank, with the model number on the reverse.

The overall length is 6.2 inches, and the finish is plain steel.


Pliers, Cutters, and Adjustable Wrenches

From 1924 through 1945 Snap-on sourced most of its pliers and cutters from the Forged Steel Products Company, makers of the Vacuum Grip brand. In addition to being a supplier, Forged Steel Products played an important role in the development of Snap-on, and in 1945 the company was acquired by Snap-on. For more information on this interesting company, see our article on the Forged Steel Products Company.

In later years Snap-on also sourced pliers from other suppliers, including the Diamond Calk Horseshoe Company and Channellock.


Vacuum Grip Pliers and Cutters

Our article on the Forged Steel Products Company includes a number of examples of Vacuum Grip pliers and cutters produced from the 1920s through 1940s. Please refer to that article for information on these tools.

After the acquisition of Forged Steel Products in 1945, Snap-on continued production of Vacuum Grip pliers in the Newport, Pennsylvania facility for some years. The pliers continued to be marked with the Vacuum Grip brand, but were now marked with the Snap-on name instead of Forged Steel Products.


Snap-on "Vacuum Grip" No. 5 Midget Ignition Pliers

[Vacuum Grip No. 5 Midget Ignition Pliers]
Fig. 233A. Vacuum Grip No. 5 Midget Ignition Pliers, with Insets for Side View and Marking Detail, 1961.

Fig. 233A shows a pair of Snap-on "Vacuum Grip" No. 5 midget ignition pliers, marked with "Snap-on Tools USA" and an "I" date code forged into the underside of one handle, with "Vacuum Grip No. 5" forged into the other handle (not shown).

The overall length is 4.5 inches, and the finish is plain steel.

The stylized "I" date code indicates production in 1961.

An earlier example of this model can be seen as the Vacuum Grip No. 5 Midget Ignition Pliers.


Snap-on Vacuum Grip No. 308 Battery Pliers

Our first figure for this section shows an example of the early Vacuum Grip production under the Snap-on name.

[Snap-on Vacuum Grip 308 Battery Pliers]
Fig. 233. Snap-on Vacuum Grip 308 Battery Pliers, with Insets for Side View and Marking Detail, 1946.

Fig. 233 shows a pair of Snap-on Vacuum Grip No. 308 battery pliers, stamped with the Snap-on name and "Newport, PA. U.S.A." on the front, with "Vacuum Grip" and a "TM. Reg. U.S. Pat. Off." trademark notice on the reverse. A stylized "6" date code for 1946 can be seen at the right of the Snap-on name.

The overall length is 7.9 inches, and the finish is polished steel.

These pliers are very similar to the earlier Vacuum Grip No. 308 Battery Pliers shown in our article on Forged Steel Products.


Snap-on Vacuum Grip 58R 8 Inch Lineman's Pliers

[Snap-on Vacuum Grip 58R 8 Inch Lineman's Pliers]
Fig. 234. Snap-on Vacuum Grip 58R 8 Inch Lineman's Pliers, with Insets for Side View and Reverse Detail, 1955.

Fig. 234 shows a pair of Snap-on 58R 8 inch lineman's pliers, stamped "Vacuum Grip" and "Snap-on" around the pivot, and with "USA" on the underside of one handle. The underside of the handle is also stamped with date codes "5" and "6" (not shown), indicating production in 1955.

The overall length is 8.5 inches, and the finish is polished steel.


Snap-on Vacuum Grip No. 62 8 Inch Angle-Nose Pliers

[Snap-on Vacuum Grip No. 62 8 Inch Angle-Nose Pliers]
Fig. 235. Snap-on Vacuum Grip No. 62 8 Inch Angle-Nose Pliers, with Insets for Side View and Marking Detail, 1950.

Fig. 235 shows a pair of Snap-on Vacuum Grip No. 62 8 inch slip-joint angle-nose pliers, marked with "Vacuum Grip" and the model number forged into the underside of one handle, with "Snap-on Tools USA" and a date code "0" for 1950 on the other handle.

The overall length is 8.6 inches, and the finish is nickel plating.


Snap-on "Vacuum Grip" 96 6 Inch Needlenose Pliers

[Snap-on Vacuum Grip 96 6 Inch Needlenose Pliers]
Fig. 236. Snap-on "Vacuum Grip" 96 6 Inch Needlenose Pliers, with Insets for Side View and Marking Detail, 1957.

Fig. 236 shows a pair of Snap-on "Vacuum Grip" 96 6 inch needlenose pliers, marked with "Snap-on Tools" and "USA" forged into the underside of one handle, with "Vacuum Grip" and "No. 96" forged into the other handle. The pliers are also marked with a forged-in "7" date code for 1957, plus a second stamped "8" date code for 1958.

The overall length is 7.2 inches, and the finish is polished steel.

The Snap-on catalogs refer to this model as 6 inch needlenose pliers, although the length is actually slightly longer than 7 inches. Earlier versions from Forged Steel Products were generally slightly under 7 inches in length.


Snap-on 96 6 Inch Needlenose Pliers

Some later pliers dropped the "Vacuum Grip" name but retained the distinctive gripping pattern.

[Snap-on 96 6 Inch Needlenose Pliers]
Fig. 237. Snap-on 96 6 Inch Needlenose Pliers, with Insets for Side View and Marking Detail.

Fig. 237 shows a later pair of Snap-on 96 6 inch needlenose pliers, marked with the Snap-on name forged into the underside of one handle, with "96" and "USA" forged into the other handle.

The overall length is 7.2 inches, and the finish is polished steel.


Snap-on 94 4 Inch Needlenose Pliers

[Snap-on 94 4 Inch Needlenose Pliers]
Fig. 238. Snap-on 94 4 Inch Needlenose Pliers, with Insets for Side View and Marking Detail.

Fig. 238 shows a later pair of Snap-on 94 4 inch needlenose pliers, stamped with the "Snap-on" and the nodel number on the face, with "USA" and a "Z" date code for 1962 on the underside of the one handle.

The overall length is 4.6 inches, and the finish is polished steel.


Snap-on "Vacuum Grip" HL-9 9 Inch Compound Leverage Diagonal Cutters

[Snap-on HL-9 9 Inch Compound Leverage Diagonal Cutters]
Fig. 239. Snap-on HL-9 9 Inch Compound Leverage Diagonal Cutters, with Insets for Side View and Marking Detail, 1958.

Fig. 239 shows a pair of Snap-on HL-9 9 inch compound leverage diagonal cutters, marked with "Snap-on" and "USA" stamped on the underside of one handle, with "Vacuum Grip" and "HL-9" on the other handle. The pliers are also marked with a stylized "8" date code for 1958 on the underside of the one handle.

The overall length is 9.1 inches, and the finish is black oxide.


Tongue-and-Groove Pliers


Snap-on 90 Tongue-and-Groove Pliers

[Snap-on 90 Tongue-and-Groove Pliers]
Fig. 240. Snap-on 90 Tongue-and-Groove Pliers, with Insets for Handle Pattern and Marking Detail, 1959.

Fig. 240 shows a pair of Snap-on 90 tongue-and-groove pliers, stamped with a "Pat. No. 2622464" patent notice on the front, with "Vacuum Grip" and "USA" plus a date code for 1959 on the reverse.

The overall length ranges from 9.2 inches closed to 9.7 inches fully extended. The finish is chrome plating.

The patent notice refers to patent #2,622,464, issued to W.V. Daugherty in 1952 with assignment to Utica Drop Forge & Tool.


Snap-on 90A Tongue-and-Groove Pliers

[Snap-on 90A Tongue-and-Groove Pliers]
Fig. 241. Snap-on 90A Tongue-and-Groove Pliers, with Inset for Marking Detail.

Fig. 241 shows a pair of Snap-on 90A tongue-and-groove pliers, marked "USA" with a "Pat. No. 2622464" patent notice.

The overall length ranges from 9.1 inches closed to 9.6 inches fully extended. The finish is chrome plating.

The patent notice refers to patent #2,622,464, issued to W.V. Daugherty in 1952 with assignment to Utica Drop Forge & Tool.


Snap-on 91CP Tongue-and-Groove Pliers

[Snap-on 91CP Tongue-and-Groove Pliers]
Fig. 242. Snap-on 91CP Tongue-and-Groove Pliers, with Insets for Marking Detail, 1961.

Fig. 242 shows a pair of Snap-on 91CP tongue-and-groove pliers, stamped "USA" with a "1" date code for 1961, and with a "Pat. No. 2622464" patent notice. The reverse has an etched marking "5120PWT0003" and "GSOOS50109", possibly a government inventory number.

The overall length ranges from 9.2 inches closed to 9.6 inches fully extended. The finish is plain steel with plastic handle grips.

The patent notice refers to patent #2,622,464, issued to W.V. Daugherty in 1952 with assignment to Utica Drop Forge & Tool.


Snap-on GCP-10 Grease Cap Pliers

[Snap-on GCP-10 Grease Cap Pliers]
Fig. 243. Snap-on GCP-10 Grease Cap Pliers, 1953.

Fig. 243 shows a pair of Snap-on GCP-10 grease cap pliers, designed for removing the grease cap from a wheel hub. The lower handle is stamped "Vacuum Grip" and "U.S.A.", with a stylized "3" date code for 1953.

The overall length is 10.7 inches, and the finish is plain steel, with pitting due to rust.


Adjustable Wrenches

In 1927 Snap-on began offering Diamond brand adjustable wrenches in its catalogs, and recommended them as "... the best tools of this type that are made." Snap-on continued to offer Diamond wrenches (later Diamalloy) throughout the 1930s, but sometime in the 1940s decided to offer adjustable wrenches as part of their Blue-Point line. The resulting wrenches had somewhat unusual dual markings, with the Blue-Point trademark on one side and "Snap-on Tools Corp." on the reverse.

The Blue-Point adjustable wrenches turned out to be nearly identical to the Diamalloy wrenches, except for the name change, and it's probably safe to assume that these wrenches continued to be made by Diamond under contract for Snap-on.

Examples of the Diamond brand wrenches can be found in our article on the Diamond Calk Horseshoe Company.


Blue-Point 10 Inch Adjustable Wrench

[Blue-Point 10 Inch Adjustable Wrench]
Fig. 244. Blue-Point 10 Inch Adjustable Wrench, with Inset for Reverse Detail.

Fig. 244 shows a Blue-Point 10 inch adjustable wrench, marked on the front with "Forged Alloy Steel" and "Made in U.S.A." in raised letters, with "Snap-on Tools Corp." and "Kenosha, Wisconsin" on the reverse.

The overall length is 10.1 inches, and the maximum opening is 1.2 inches. The maximum head thickness was measured at 0.55 inches.

The finish is chrome plating.

This wrench is nearly identical (except for markings) to the corresponding Diamond Diamalloy 10 Inch Adjustable Wrench.


Blue-Point 12 Inch Adjustable Wrench

[Blue-Point 12 Inch Adjustable Wrench]
Fig. 245. Blue-Point 12 Inch Adjustable Wrench, with Insets for Side View and Reverse Detail.

Fig. 245 shows a Blue-Point 12 inch adjustable wrench, marked on the front with "Forged Alloy Steel" and "Made in U.S.A." in raised letters, with "Snap-on Tools Corp." and "Kenosha, Wisconsin" on the reverse.

The overall length is 12.2 inches, and the maximum opening is 1.4 inches. The maximum head thickness was measured at 0.70 inches.

The finish is chrome plating.

This wrench is nearly identical (except for markings) to the corresponding Diamond Diamalloy 12 Inch Adjustable Wrench.


Blue-Point 15 Inch Adjustable Wrench

[Blue-Point 15 Inch Adjustable Wrench]
Fig. 246. Blue-Point 15 Inch Adjustable Wrench, with Insets for Side View and Reverse Detail.

Fig. 246 shows a larger example, a Blue-Point 15 inch adjustable wrench with a tapered handle. The wrench is marked with the Blue-Point logo plus "Forged Alloy Steel" and "Made in U.S.A." forged into the front, with "Snap-on Tools Corp." and "Kenosha, Wisconsin" forged into the reverse. Both sides of the shank are also marked with the nominal size as "15" followed by double quote marks.

The overall length is 15.4 inches, and the maximum opening is 1.7 inches. The maximum head thickness was measured at 0.93 inches.

The finish is chrome plating.

There's an interesting story behind this wrench that provides a useful maintenance tip as well. The wrench was purchased from a local used tool store for a very modest price, but with a catch -- the adjusting knurl and pin were missing. The wrench seemed like a bargain assuming that replacement parts could be obtained from Snap-on, but as it turned out, the friendly local Snap-on dealer was no longer able to get parts for Blue-Point adjustable wrenches. A check for Diamond brand replacement parts also proved fruitless.

A solution to the problem came some time later while cleaning an old Diamond brand adjustable wrench. With the wrench disassembled, the screw pin holding the knurl was noted as being threaded on the inside end, a design also used by Crescent adjustable wrenches. (Other wrenches such as Utica have the threads on the outer end of the screw.) A quick check confirmed that the Diamond screw pin was interchangable with a Crescent model, and an online check (of the Cooper Tools website) showed that replacement parts were still available for Crescent brand adjustable wrenches. (But in the larger sizes only, 12 inches and up.) The Crescent part number was AC115PSK for the repair kit including the adjusting knurl, retaining pin, and spring.

To make matters even more convenient, the AC115PSK kit could be ordered online from Amazon at a small discount! A few days later the parts arrived by mail, and the old wrench was soon as good as new.

As a number of Alloy Artifacts readers have inquired about sources for repair parts for adjustable wrenches, hopefully this story will provide a good starting point. As some point we'll add a table giving further information on the interchangability of parts for adjustable wrenches.


Specialty Tools


Snap-on 2513-B Buick Head Bolt Wrench

[Snap-on 2513-B Buick Head Bolt Wrench]
Fig. 247. Snap-on 2513-B Buick Special Offset Box Wrench, with Insets for Side View and Reverse Detail, 1931.

Fig. 247 shows a Snap-on 2513-B Buick head bolt wrench, offering an unusual combination of box and crowfoot (open) ends, both with a 5/8 size. The shank is stamped with "Snap-on Tools Inc." and the model number, with "Pat. No. 1424069-1" and a "*" date code for 1931 on the reverse (not shown).

The overall length is 13.7 inches, and the finish is plain steel, with extensive pitting due to rust.

This wrench was found in a bucket of rusty tools at a flea market, literally caked with rust. Since it's hard to find this model in any condition, we were happy to pay the 50 cent price and treat the wrench to an electrolytic derusting session.


Blue Point S-9594-B Chevrolet Cylinder Head Wrench

[Blue Point S-9594-B 3/4x3/4 Chevrolet Cylinder Head Wrench]
Fig. 248. Blue Point S-9594-B 3/4x3/4 Specialty Offset Box Wrench, with Insets for Side View and Reverse Detail, 1937.

Fig. 248 shows a Blue Point S-9594-B 3/4x3/4 offset box wrench for Chevrolet cyclinder head service. The shank is stamped "Blue Point" with the model number and fractional sizes, with a "7" date code for 1937 on the reverse.

The overall length is 15.7 inches, and the finish is chrome plating.

The "-A" version of this wrench model is listed in the 1937 Snap-on catalog in the section for Chevrolet special tools, where it is recommended for cylinder head service.


Blue Point S-9859 Buick Special Offset Single-Box Wrench

[Blue Point S-9859 1-3/8 Buick Special Offset Box Wrench]
Fig. 249. Blue Point S-9859 1-3/8 Buick Special Offset Box Wrench, with Insets for Side View and Reverse Detail, 1936.

Fig. 249 shows a Blue Point S-9859 1-3/8 offset single-box wrench designed for Buick axle-nut applications. The shank is stamped "Blue Point Boxocket" and "Patent App For", with a stylized "6" date code for 1936 on the reverse.

The overall length is 12.5 inches, and the finish is chrome plating.

This wrench is listed in the 1933 Snap-on catalog for servicing the rear axle inner nut on various Buick models, including all 1929 models, models 50 and 60 of 1930, and models 60, 80, and 90 of 1931.


Snap-on 1/2-Hex Drive V-21 Valve Clearance Adjusting Tool

[Snap-on V-21 Valve Adjuster]
Fig. 250. Snap-on V-21 Valve Adjuster, 1940.

Fig. 250 shows a Snap-on V-21 valve clearance adjusting tool, marked with "Snap-on" and "Pat No. 1544520" forged into the handle, and with "Made in U.S.A." stamped near the end of the handle. A date code for 1940 can be seen on the lower part of the handle.

The handle length is 6.0 inches, and the knob has a diameter of 2.7 inches. The finish is chrome plating.

This tool is based on patent #1,544,520, issued to E.P. Putrow in 1925. Snap-on first offered this tool in 1927 as the No. 21 valve tool set, which included three special hex-drive sockets in sizes 1/2, 9/16, and 5/8. These sizes served for valve adjustments on most vehicles at the time.

By 1933 the valve tool set had become model V-21 and still retained the hex drive, and the special sockets were numbered V-160, V-180, and V-200 (see next figure). In later models the drive stud was changed to a standard 1/2 square drive, so that special sockets were no longer required.

Similar tools were made by other companies; see for example the Plomb 2034 Valve Adjustment Tool.


Snap-on 1/2-Hex Drive V-160, V-180, V-200 Valve Adjuster Sockets

[Snap-on V-xx0 1/2-Hex Drive Sockets]
Fig. 251. Snap-on V-xx0 1/2-Hex Drive Sockets for V-21, with Inset for Broaching.

Fig. 251 shows the 1/2-hex drive Snap-on sockets used with the V-21 valve adjustment tool. The models and sizes are, from the left, V-160 (1/2), V-180 (9/16), and V-200 (5/8).

The sockets are marked with date codes, 1930 for the left (V-160), 1929 for the middle (V-180), and 1940 for the right (V-200).

The inset at the top shows the 12-point broaching of the sockets.


Snap-on 1/2-Drive V-21A Valve Clearance Adjusting Tool

[Snap-on V-21A Valve Adjuster]
Fig. 252. Snap-on V-21A Valve Adjuster, 1944.

Fig. 252 shows a later Snap-on V-21A valve clearance adjusting tool using a standard 1/2 square drive stud. The handle has forged-in markings "Snap-on" and "Pat No. 1544520", with the model number stamped at the end and "Made in U.S.A." on the reverse. An "E" date code for 1944 can be seen on the lower part of the handle.

The overall length is 6.5 inches, and the finish is plain steel with traces of cadmium plating.


Snap-on 1/2-Drive V-22 Valve Clearance Adjusting Tool

[Snap-on V-22 Valve Adjuster]
Fig. 253. Snap-on V-22 Valve Adjuster, with Insets for Marking Detail, 1954.

Fig. 253 shows the modern version of the valve adjuster, a Snap-on V-22 valve tool with a 1/2 square drive stud. The handle is stamped "USA" with a stylized "4" date code for 1954, and the model number is forged into the top of the knob.

The overall length is 8.3 inches, and the finish is polished chrome.

This tool uses a different mechanism to secure the socket to the drive stud. Instead of a spring-loaded detent ball mounted at the side, this version places the detent ball in the drive stud. But since the screwdriver shaft runs through the drive stud, there's no room for a spring behind the detent ball; instead, a notch in the screwdriver shaft allows the detent ball to retract. The socket is then installed, and becomes locked in place when the screwdriver shaft returns to its normal position.


Blue Point CF49 Valve Spring Lifter

[Blue Point CF-49 Valve Spring Lifter]
Fig. 254. Blue Point CF49 Valve Spring Lifter, with Inset for Top View.

Fig. 254 shows a Blue Point CF49 valve spring lifter, marked "Kenosha Wis." and "Made in U.S.A." on the side, and with a "Pat. 2,119,128" patent notice.

The overall length is 9.6 inches, and the finish is black oxide.

The patent notice refers to patent #2,119,128, filed by I.J. Clark in 1937 and issued in 1938. This patent was used by other tool makers including OTC and Herbrand, and examples can be seen in the Herbrand VL-540 Valve Spring Lifter and OTC A-100 Valve Spring Lifter.


Snap-on S-9077 Ford Camshaft Gear Nut Wrench

[Blue-Point S-9077 1-3/4 Specialty Wrench]
Fig. 255. Snap-on S-9077 1-3/4 Specialty Wrench, with Inset for Side View, 1931.

Fig. 255 shows a Snap-on S-9077 1-3/4 specialty wrench, marked with the Snap-on logo and model forged into the shank. The face is also marked with overstamped date code symbols for 1931 and 1932.

The overall length is 7.9 inches, and the finish is cadmium plating.

This tool is listed in the 1933 Snap-on catalog as a Ford cam shaft gear nut wrench.


Blue Point S-8652 Brake Wrench

[Blue-Point S-8652 1/4x3/8 Brake Wrench]
Fig. 256. Blue Point S-8652 1/4x3/8 Brake Wrench, 1946.

Fig. 256 shows a Blue Point S-8652 1/4x3/8 open-end brake wrench, with markings "Blue-Point" and "Made in U.S.A." forged into the shank.

The overall length is 9.0 inches, and the finish is chrome plating.

The wrench is marked with a date code for 1946, which somewhat unusually is forged rather than stamped.


Blue Point CX-1820 9/16x5/8 Halfmoon Box Wrench

[Blue Point CX-1820 9/16x5/8 Halfmoon Box Wrench]
Fig. 257. Blue Point CX-1820 9/16x5/8 Halfmoon Box Wrench, with Inset for Reverse Detail, 1933.

Fig. 257 shows a Blue Point CX-1820 9/16x5/8 halfmoon box wrench, stamped "Blue Point Boxocket" with the model number and fractional sizes on one side, with "Pat No. 1424069" and a date code symbol for 1933 on the other side.

The overall length is 6.6 inches, and the finish is chrome plating.


Blue Point XA-16 1/2x1/2 S-Shaped Box Wrench

In the mid 1930s Blue Point introduced an unusual style of S-shaped box wrenches, designed with the same opening size on each end, but with opposite offset angles. (The more commonly for S-shaped box wrenches places different opening sizes on each end.)

[Blue Point XA-16 1/2x1/2 S-Shaped Box Wrench]
Fig. 258. Blue Point XA-16 1/2x1/2 S-Shaped Box Wrench, with Inset for Reverse Detail, 1944.

Fig. 258 shows a Blue Point XA-16 1/2x1/2 S-shaped box wrench, stamped "Blue Point" with the size and model number on the shank, with an "E" date code symbol for 1944 on the reverse.

The overall length is 7.3 inches, and the finish is cadmium plating.


Blue Point XA-18 9/16x9/16 S-Shaped Box Wrench

[Blue Point XA-18 9/16x9/16 S-Shaped Box Wrench]
Fig. 258B. Blue Point XA-18 9/16x9/16 S-Shaped Box Wrench, with Inset for Reverse Detail, 1934.

Fig. 258B shows a Blue Point XA-18 9/16x9/16 S-shaped box wrench, stamped "Blue Point" with the size and model number on the shank, with "Pat No. 1424069" and a stylized "4" date code for 1934 on the reverse.

The overall length is 7.8 inches, and the finish is chrome plating.


Blue Point XA-20 5/8x5/8 S-Shaped Box Wrench

[Blue Point XA-20 5/8x5/8 S-Shaped Box Wrench]
Fig. 258C. Blue Point XA-20 5/8x5/8 S-Shaped Box Wrench, with Inset for Reverse Detail, 1934.

Fig. 258C shows a Blue Point XA-20 5/8x5/8 S-shaped box wrench, stamped "Blue Point" with the size and model number on the shank, with "Pat No. 1424069" and a stylized "4" date code for 1934 on the reverse.

The overall length is 8.5 inches, and the finish is chrome plating, with extensive losses due to rust.

The reverse side is also stamped with an apparent "7" date code, suggesting that this wrench was sold a few years after it was made.


Snap-on SBX1416 7/16x1/2 S-Shaped Box-End Wrench

[Snap-on SBX1416 7/16x1/2 S-Shaped Box-End Wrench]
Fig. 259. Snap-on SBX1416 7/16x1/2 S-Shaped Box-End Wrench, with Inset for Reverse Detail, 1994.

Fig. 259 shows a Snap-on SBX1416 7/16x1/2 S-shaped box-end wrench, stamped with the Snap-on logo and fractional sizes on the shank, with "USA" and a stylized "4" date code for 1994 on the reverse.

The overall length is 6.0 inches, and the finish is chrome plating.


Blue-Point B-1351-A Brake Wrench

[Blue-Point B-1351-A 3/16x1/4 Brake Wrench]
Fig. 260. Blue-Point B-1351-A 3/16x1/4 Brake Wrench, with Inset for Reverse Detail, 1949.

Fig. 260 shows a Blue-Point B-1351-A 3/16x1/4 open-end brake wrench, marked on the reverse with "Made in U.S.A." and a date code for 1949.

The overall length is 8.5 inches, and the finish is chrome plating.


Blue Point S-9460 Caster-Camber Obstruction Wrench

In the late 1940s Snap-on offered a series of Blue Point single-open obstruction wrenches for caster-camber (wheel alignment) applications, designed with thin heads and 90 degree offset angles to access the adjusting nuts. These are commonly found with curved handles and a nickel-plated finish, but we recently acquired an early example with a straight handle.

[Blue Point S-9460 1-7/16 Caster-Camber Obstruction Wrench]
Fig. 261. Blue Point S-9460 1-7/16 Caster-Camber Obstruction Wrench, ca. 1940s.

Fig. 261 at the left shows a Blue Point S-9460 1-7/16 obstruction wrench, marked "Blue Point" and "Made in U.S.A." in forged raised letters, and with the model stamped on a small raised panel.

The overall length is 8.9 inches, and the finish is plain steel.


Blue-Point S-9460-A Caster-Camber Obstruction Wrench

[Blue-Point S-9460-A 1-7/16 Caster-Camber Obstruction Wrench]
Fig. 262. Blue-Point S-9460-A 1-7/16 Caster-Camber Obstruction Wrench, 1949.

Fig. 262 at the left shows a later Blue-Point S-9460A 1-7/16 obstruction wrench, stamped "Made in U.S.A." with a "9" date code for 1949.

The overall length is 8.1 inches, and the finish is nickel plating.


Blue-Point S-8271 Caster-Camber Obstruction Wrench

[Blue-Point S-8271 1-1/4 Caster-Camber Obstruction Wrench]
Fig. 263. Blue-Point S-8271 1-1/4 Caster-Camber Obstruction Wrench, 1949.

Fig. 263 at the left shows a less common example of the caster-camber wrenches, a Blue-Point S-8271 1-1/4 obstruction wrench, stamped "Made in U.S.A." with a "9" date code for 1949.

The overall length is 8.2 inches, and the finish is nickel plating.


Blue-Point S-9462-A Caster-Camber Obstruction Wrench

[Blue-Point S-9462-A 1-13/32 Caster-Camber Obstruction Wrench]
Fig. 264. Blue-Point S-9462-A 1-13/32 Caster-Camber Obstruction Wrench, 1949.

Fig. 264 at the left shows a Blue-Point S-9462-A 1-13/32 obstruction wrench, stamped "Made in U.S.A." with a "9" date code for 1949.

The overall length is 8.1 inches, and the finish is nickel plating.


Blue Point S-8558 Distributor Wrench

In the evolution of automotive technology, manufacturers sometimes found it necessary to place the distributor in an awkward place, with a clamping bolt virtually inaccessible without a special tool. Tool makers of course responded by making specialty distributor wrenches, typically a single box wrench with a suitably offset handle.

[Blue Point S-8558 1/2 Distributor Wrench]
Fig. 265. Blue Point S-8558 1/2 Distributor Wrench, with Insets for Broaching and Marking Detail.

Fig. 265 shows a Blue Point S-8558 distributor wrench with a 1/2 inch box opening, marked with the Blue Point logo.

The overall length is 6.3 inches, and the handle offset is 3.5 inches. The finish is chrome plating.

The S-8558 wrench was listed in the 1939 catalog for Lincoln Zephyr distributor service, and may have been the first distributor specialty wrench offered by Snap-on. By 1953 Snap-on was offering four models of distributor wrenches, and the count continued to grow in subsequent years.


Snap-on S-9470A Specialty Wrench

[Snap-on S-9470A Specialty Wrench]
Fig. 266. Snap-on S-9470A Specialty Wrench, with Insets for Broaching and Marking Detail, 1962.

Fig. 266 shows a Snap-on S-9470A specialty wrench with a 1/2 inch box opening, marked with the Snap-on logo and "USA" forged into the shank, and with a stylized "2" date code for 1962.

The overall length is 12.2 inches, and the finish is chrome plating.


Blue Point S-9825 1/2-Drive 5/8 Torque Adapter

[Blue Point S-9825 1/2-Drive 5/8 Torque Adapter]
Fig. 267. Blue Point S-9825 1/2-Drive 5/8 Torque Adapter, with Insets for Marking and Broaching Detail, 1938.

Fig. 267 at the left shows a Blue Point S-9825 1/2-drive 5/8 box-end torque adapter, marked with a date code for 1938.

The overall length is 6.2 inches, and the finish is chrome plating.


Blue Point S-9513 1/2-Drive 3/4 Wide-Sweep Torque Adapters

The next several figures show examples of the model S-9513 torque adapter, a wide sweep adapter with a 3/4 box end for servicing Chevrolet cylinder head bolts.

[Blue Point S-9513A 1/2-Drive 3/4 Wide-Sweep Torque Adapter]
Fig. 268. Blue Point S-9513A 1/2-Drive 3/4 Wide-Sweep Torque Adapter, with Inset for Marking Detail, 1939.

Fig. 268 at the left shows our earliest example, a 1/2-drive Blue Point S-9513A 3/4 wide-sweep torque adapter, marked "Made in U.S.A." with a date code for 1939.

The adapter has an offset of 2.5 inches and an overall length of 6.5 inches. The finish is chrome plating.

Note that the "A" suffix to the model number is stamped below the standard marking, suggesting that it may have been added later.

[Blue Point S-9513A 1/2-Drive 3/4 Wide-Sweep Torque Adapter]
Fig. 269. Blue Point S-9513A 1/2-Drive 3/4 Wide-Sweep Torque Adapter, with Insets for Marking Detail, 1940.

Fig. 269 at the left shows a slightly later Blue Point S-9513A torque adapter, marked "Made in U.S.A." with a date code for 1940.

The adapter has an offset of 2.5 inches and an overall length of 6.6 inches. The finish is chrome plating.

[Blue-Point S-9513C 1/2-Drive 3/4 Wide-Sweep Torque Adapter]
Fig. 270. Blue-Point S-9513C 1/2-Drive 3/4 Wide-Sweep Torque Adapter, with Insets for Marking and Broaching Detail, 1954.

A later version of the S-9513 adapter is shown in Fig. 270 at the left, a Blue-Point S-9513C torque adapter marked "U.S.A." with a date code for 1954.

The overall length is 6.3 inches, and the finish is chrome plating.


Snap-on M-4379 1/2-Drive Open-End Torque Adapter

[Snap-on M-4379 1/2-Drive 3/4 Open-End Torque Adapter]
Fig. 271. Snap-on M-4379 1/2-Drive 3/4 Open-End Torque Adapter, with Inset for Side View, 1956.

Fig. 271 shows a Snap-on M-4379 1/2-drive 3/4 open-end torque adapter, marked "U.S.A." with a date code for 1956.

The overall length is 5.3 inches, and the finish is chrome plating.


Snap-on S-8686 1/2-Drive 3/4 Box Torque Adapter

[Snap-on S-8686 1/2-Drive 3/4 Box Torque Adapter]
Fig. 272. Snap-on S-8686 1/2-Drive 3/4 Box Torque Adapter, with Inset for Side View, 1958.

Fig. 272 shows a Snap-on S-8686 1/2-drive 3/4 box-end torque adapter, stamped "USA" with a date code for 1958.

The overall length is 7.5 inches, and the finish is chrome plating.

The Snap-on catalog lists this tool as a caster-camber wrench for wheel alignment applications, specifically for servicing the 1957-1962 Ford, 1957-1958 Mercury and 1958 Edsel automobiles.


Snap-on Y-903 1/2-Drive Torque Adapter Extension

[Snap-on Y-903 1/2-Drive Torque Adapter Extension]
Fig. 273. Snap-on Y-903 1/2-Drive Torque Adapter Extension, with Inset for Marking Detail, 1954.

Fig. 273 shows a Snap-on Y-903 1/2-drive torque adapter extension with a 3/8-drive stud end, stamped "Snap-on" and "USA" with a stylized "4" date code for 1954.

The overall length is 13.4 inches, and the finish is cadmium plating.

The 3/8-drive stud is fitted with a locking pin (not shown) instead of a friction ball.


Snap-on S-9156 1/2-Drive 1-13/32 Crowfoot Wrench

[Snap-on S-9156 1/2-Drive 1-13/32 Crowfoot Wrench]
Fig. 274. Snap-on S-9156 1/2-Drive 1-13/32 Crowfoot Wrench, 1950.

Fig. 274 shows a 1/2-drive Snap-on S-9156 1-13/32 open-end crowfoot wrench, stamped "USA" with a "0" date code for 1950.

The finish is cadmium plating.


Snap-on A-50 1/2-Drive Stud Extractor

[Snap-on A-50 1/2-Drive Stud Extractor]
Fig. 275. Snap-on A-50 1/2-Drive Stud Extractor, with Inset for Top View, 1944.

Fig. 275 shows a 1/2-drive Snap-on A-50 stud extractor, stamped "Made in U.S.A." and "Pat-2024852", and with an "E" date code for 1944 following the model number.

The finish is cadmium plating, as expected for the wartime production date.

The stud extractor uses a distinctive rack-and-pinion mechanism described by patent #2,024,852, issued to G.R. Gagne in 1935. In operation, the stud to be removed (or installed) is gripped by the serrations in the notch of the transverse rod. As the drive connection is turned in the desired direction, the force is transmitted to the transverse rod to tighten the grip on the stud, thereby allowing it to be turned.


Snap-on LA-55 3/4-Drive Stud Extractor

[Snap-on LA-55 3/4-Drive Stud Extractor]
Fig. 276. Snap-on LA-55 3/4-Drive Stud Extractor, with Insets for Construction and Marking Detail, 1938.

Fig. 276 shows a 3/4-drive Snap-on LA-55 stud extractor, stamped "Loxocket Trademark" with a stylized "8" date code for 1938.

The finish is chrome plating.


Snap-on A-15 1/2-Drive Drag Link Driver

[Snap-on A-15 1/2-Drive Drag Link Driver]
Fig. 277. Snap-on A-15 1/2-Drive Drag Link Driver, with Inset for Side View, 1952.

Fig. 277 shows a 1/2-drive Snap-on A-15 drag link driver, stamped "USA" with a stylized "2" date code for 1952.

The overall height is 1.4 inches, and the blade width is 1.2 inches (1-3/16 nominal). The finish is chrome plating.

Drag link drivers are designed for turning large slotted screws, typically for vehicle front-end applications. (Basically, they're oversized screwdrivers.) An earlier Snap-on example can be seen in the Snap-on A17 Drag Link Driver, and examples from other makers include the Blackhawk 49979 Drag Link Driver and Herbrand S-39 Drag Link Driver.


Snap-on A-17 1/2-Drive Drag Link Driver

[Snap-on A-17 1/2-Drive Drag Link Driver]
Fig. 278. Snap-on A-17 1/2-Drive Drag Link Driver, with Inset for Side View, 1959.

Fig. 278 shows a 1/2-drive Snap-on A-17 drag link driver, stamped "USA" with a stylized "9" date code for 1959.

The overall height is 1.6 inches, and the blade width is 0.9 inches (15/16 nominal). The finish is chrome plating.

An earlier version of this tool can be seen in the Snap-on Early A17 Drag Link Driver.


Snap-on 71-M 3/4-Hex Drive Ratchet

[Snap-on 71-M 3/4-Hex Drive Ratchet]
Fig. 279. Snap-on 71-M 3/4-Hex Drive Ratchet, with Inset for Reverse, 1951.

Fig. 279 shows a Snap-on 71-M ratchet fitted with a special 3/4 female hex drive gear. The forged-in markings on the shank are standard for this ratchet model, with the 71-M model number and Snap-on logo appearing on both sides, and with "USA" on the top and "Pat. 1854513" on the reverse. The top side also has a stamped date code for 1951.

The overall length is 9.6 inches, and the finish is plain steel with traces of cadmium plating.


Snap-on Leroi 88-21 Specialty Box-End Wrench

[Snap-on Leroi 88-21 3/4x3/4 Offset Box-End Wrench]
Fig. 280. Snap-on Leroi 88-21 3/4x3/4 Offset Box-End, with Inset for Side View.

Fig. 280 shows an unusual Snap-on specialty wrench, the Snap-on Leroi 88-21 3/4x3/4 offset box-end wrench.

The overall length is 10.6 inches, and the finish is cadmium plating.


Snap-on 3/8-Drive PWA-1398 11/16 Inch Spark-Plug Socket

[Snap-on 3/8-Drive PWA-1398 11/16 Deep Spark-Plug Socket]
Fig. 281. Snap-on 3/8-Drive PWA-1398 11/16 Deep Spark-Plug Socket, with Insets for Broaching and Marking Detail.

Fig. 281 shows a 3/8-drive Snap-on PWA-1398 11/16 deep hex socket, stamped "Made in U.S.A." with the Snap-on logo and PWA model number.

The overall height is 2.9 inches, and the finish is cadmium plating.

The "PWA" model number prefix indicates production for Pratt-Whitney Aircraft. This socket was likely intended for spark-plug service.


Snap-on 1/2-Drive NAF-1110-13 1 Inch Spark-Plug Socket

[Snap-on 1/2-Drive NAF-1110-13 1 Inch Spark-Plug Socket]
Fig. 282. Snap-on 1/2-Drive NAF-1110-13 1 Inch Spark-Plug Socket, with Insets for Drive End and Broaching.

Fig. 282 shows a 1/2-drive Snap-on NAF-1110-13 1 inch deep socket, stamped with the Snap-on logo and "USN".

The overall height is 2.7 inches, and the finish is cadmium plating.

The upper inset shows the tapered drive end with a cross-bar hole. This socket was likely intended for spark-plug service.


Snap-on 1/2-Drive NAF-1110-14 11/16 Spark-Plug Socket with Rotating Ring

[Snap-on 1/2-Drive NAF-1110-14 11/16 Spark-Plug Socket]
Fig. 283. Snap-on 1/2-Drive NAF-1110-14 11/16 Spark-Plug Socket, with Insets for Broaching and Marking Detail.

Fig. 283 shows a 1/2-drive Snap-on NAF-1110-14 11/16 deep socket with a distinctive rotating ring, stamped with the Snap-on logo and "USN".

The overall height is 2.8 inches, and the finish is cadmium plating.

The drive end is fitted with a cross-bar hole and has a knurled band, possibly for hand-turning. The rotating ring in the center is an unusual feature and may have been designed to center the socket in a recessed hole. The ring is retained by a machined ring on one side with a press-fit sleeve on the other.


Whitworth Tools

Snap-on offered a reasonably full line of wrenches and socket tools in Whitworth sizing, the British Standard system for nut and bolt measurements. These tools were required for proper service on older British automobiles and motorcycles.

The available Whitworth tools included open-end, box-end, and combination wrenches, plus sockets in the smaller drive sizes.


Blue Point WXS-910 Offset Box Wrench

[Blue Point WXS-910 3/16Wx1/4W Offset Box Wrench]
Fig. 284. Blue Point WXS-910 3/16Wx1/4W Offset Box Wrench, with Insets for Side View and Marking Detail, 1955.

Fig. 284 shows a Blue Point WXS-910 3/16Wx1/4W offset box-end wrench, marked with the Blue Point logo and sizes on the front, with "Made in USA" and a "5" date code for 1955 on the reverse.

The overall length is 5.3 inches, and the finish is polished chrome.


Snap-on WOEX-120 Whitworth Combination Wrench

[Snap-on WOEX-120 3/8W Whitworth Combination Wrench]
Fig. 285. Snap-on WOEX-120 3/8W Whitworth Combination Wrench, with Inset for Reverse Detail, 1955.

Fig. 285 shows a Snap-on WOEX-120 3/8W Whitworth combination wrench, stamped "USA" with a date code for 1955.

The overall length is 6.5 inches, and the finish is polished chrome.


Refrigeration Tools


Blue Point RX-12 Single Flare-Nut Wrench

[Blue Point RX-12 3/8 Single Flare-Nut Wrench]
Fig. 286. Blue Point RX-12 3/8 Single Flare-Nut Wrench, with Insets for Side View and Marking Detail, 1946.

Fig. 286 shows a Blue Point RX-12 3/8 single flare-nut wrench, stamped "Made in U.S.A." and "Patd RE No. 17417" with a "6" date code for 1946.

The overall length is 6.4 inches, and the finish is chrome plating.


Blue Point RX-14 Single Flare-Nut Wrench

[Blue Point RX-14 7/16 Single Flare-Nut Wrench]
Fig. 287. Blue Point RX-14 7/16 Single Flare-Nut Wrench, with Insets for Side View and Marking Detail, 1947.

Fig. 287 shows a Blue Point RX-14 7/16 single flare-nut wrench, stamped "Made in U.S.A." and "Patd RE No. 17417" with a "7" date code for 1947.

The overall length is 6.4 inches, and the finish is chrome plating.


Blue Point RX-40 Single Flare-Nut Wrench

[Blue Point RX-40 1-1/4 Single Flare-Nut Wrench]
Fig. 288. Blue Point RX-40 1-1/4 Single Flare-Nut Wrench, with Insets for Side View and Marking Detail, 1944.

Fig. 288 shows a Blue Point RX-40 1-1/4 single flare-nut wrench, stamped "Made in U.S.A." and "Patented Re-issue No. 17417" with an "E" date code for 1944.

The overall length is 8.0 inches, and the finish is cadmium plating.


Blue Point RX-2836 7/8x1-1/8 Double Flare-Nut Wrench

[Blue Point RX-2836 7/8x1-1/8 Double Flare-Nut Wrench]
Fig. 289. Blue Point RX-2836 7/8x1-1/8 Double Flare-Nut Wrench, with Insets for Side View and Reverse Detail, 1947.

Fig. 289 shows a Blue Point RX-2836 7/8x1-1/8 double flare-nut wrench, stamped on the reverse with "Made in U.S.A." and a stylized "7" date code 1947. (The date code marking is very faint, but resembles a "?" to the right of the "Made in U.S.A." marking.)

The overall length is 9.5 inches, and the finish is chrome plating with polished faces.


References and Resources

Photographs and observations of particular tools are based on items in the Alloy Artifacts collection.

Information on Snap-on's development was found in an online article on Snap-on Company History.

Additional information was obtained from a Snap-on internal publication called "The Snap-on Story".


Catalog Coverage

Product information was obtained from a number of Snap-on catalogs, as summarized in the table below.

Catalog Title Date Format Notes
"H" Snap-on/Blue Point 1931 Half Cadmium finish standard. Socket tools in 1 inch square drive available.
Water pump wrenches listed in 24 sizes.
"H" Supplement "131 New Tools" 1931 Half First listing of 3/4-drive tools.
"J" Snap-on/Blue Point 1933 Half  
"K" Snap-on/Blue Point 1934 Half First listing for Blue Point combination wrenches and "Supreme" open-end wrenches.
"M" Snap-on/Blue Point 1937 Half  
"N" Snap-on/Blue Point 1939 Full  
"S" Snap-on 1948 Full  
"U" Snap-on Tools 1953 Full  
"X" Snap-on Tools 1960 Full  
"A2" Snap-on Tools 1967 Full  

Patents and Trademarks

Patent and trademark information was obtained from the U.S. Patents and Trademarks Office (USPTO) web site at uspto.gov. Patent documents were obtained from sites offering free downloads, notably freepatentsonline.com.


Feedback

If any readers have additional information about Snap-on history or products, please let us know via the "Contact Us" link on the home page. Your comments and suggestions are welcome as well.


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