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Decimal Equivalents| Abrasive Grit| Diamond Grit

Abrasive Grit SizingA-13 Infill Hand Plane

About Equivalencies

When I first started out woodworking and sharpening I leaned that 220 Grit and 220P Grit are not the same size.. Plus when I when to buy some diamond paste I was total confused about what I was buying.. That when I decided to learn all I could about the different rating system used in measuring abrasive grits..

I hope this page will help you decider all the standards used and save you some searching..

 

Abrasives Grit Sizes Equivalencies

Description

Diamond Mesh
Belts and Wheels
Water Stones
Average grit size in microns

 
CAMI (USA)
FEPA (Europe)
JIS
(Japan)

 
12


1842

 
P12

1764

*American National Standards Institute B74.12.

 
12*


1600

 
16
P16

1322

 
16*


1092

 
P20

984

 
20*


940

 
20


905

 
24*


686

 
P24

740

 
24


715

 
30


638

 
P30

622

 
30*


559

 
36


535

 
P36

524

 
40


428

 
P40

412

 
50


351

 
P50

326

 
60


268

 
P60

260

 
P80

195

 
80


192

Coarse Crystolon

 
P100

156
   
100

150
141

 
P120

127

160
120


116

100 micron belt

 


100

 
P150

97

Medium Crystolon, coarse India

225
150


93

80 Micron belt

 


80

 
180
P180

78

3M 74 micron diamond stone

240


74

Fine Crystolon

 
P220

65

60 Micron belt, extra coarse diamond hone

 
220


60

285
P240
240
58

 
240


53.5

Medium India 

 
F230

53

 
P280

52.5

 

280
50

 
P320

46

Coarse Diamond

325
325
F240

45
   
280

320
43

 
P360

40.5

3M 40 micron diamond stone & belt

 
"400"


40

 
F280

36.5

Medium diamond

 
320

360
36

35 Micron belt

500
P400

35

Fine India

 

400
32

30 Micron belt

600
P500

30

Washita

 
360
F320

29

 
400
P600

25.8
  800
 


25

Fine Diamond

    F360

23

22 Micron belt

 

600
22

 
P800

21.8

20 Micron belt

 


20

3M 20 micron stone

 
"800"


20

Soft Arkansas

 
500


19.5

18 Micron belt

 
P1000

18.3

1,050
F400

17
   
600

800
16

 
P1200

15.3

15 Micron belt, 15 micron SiC paper

1,200


15

Extra fine Diamond, and Medium Ceramic

 
700

1000
14

 
P1500

12.6

12 micron belt

 
800


12
Hard white Arkansas
 

900


1200
11

Queer Creek Blue Ohio Sandstone

 
600 - 1000


9-16

1,400
P2000

10.3

3M 10 micron diamond stone

 
"1800"


10

 
1000
F600
1500
9.2

Extra-fine diamond hone

 
"1200"


9

Hard black Arkansas, 9 micron belt

 
1000


9

1,800
P2500

8.4

2,800

2000
7.5

4,500
1200
F800

6.5

6 Micron belt

5,000


6

5 micron SiC paper

8,000
F1000

5

Extra fine white Ceramic, green chrome rouge, 3 Micron belt, Tormek compound*

9,000
1500
F1200
4000
3

13,000
F1500
6000
2

Japanese Waterstone

14,000
F2000
8000
1.2

1 Micron belt, Linde C compound

 
2000


1

Chromium oxide polishing compound,
0.5 micron Chromium oxide paper

60,000


0.5

There is another chart of fine abrasive equivalents at Diamond_Equivaency

100,000


0.25

Crystolon is Norton Abrasives tm for Silicon Carbide stones

India is Norton Abrasives tm for Aluminum Oxide stones

Raybrite and Linde compounds are aluminum oxide powders

 

Sharpening Jigs and Gauges A review of the numerous Jigs on the market and which Jigs that might help you decide which one you might want to buy..

Power Sharpening I feel everyone should have at least one power sharpener in a shop.. On this page I go over several machine types that are made today.

Scary Sharp Sharpening is a method of sharpening some one came up with to sharpen blades on sand paper instead of a bench stones and is the most common method for new sharpeners to use..

Bench Stones oil stones vs water stones and what the pros and cons of these honing stones .. With a section of Shapton's to come..

MK III Power Sharpener This page is about the sharpening machine I made and modeled after two popular machines on the markets

Grit Equivalency Gives you a beak down of what abrasive in classes of grit so you can gauge the abrasive qualities of one to another.

Loose Grit Sharpening Blades and Iron or Flattening Bench Stones Loose Grit is a great method to use.. It is also good for extending the life of Scary Sharp Sand Paper

Diamond Equivalency Mesh sizes in micros so you can look the them up and figure about what they compare to in regular grit

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