Diamond grit sizes

US STANDARD
ASTM E 11 M
ČSN 224015
CZECH
NORM
FEPA
ISO 6106
SIZESFINE
GRINDING
0 - 11 / 0M 10 - 1
1 - 22 / 1M 1.61 - 2
1.5 - 33 / 2M 2.51.5 - 3
2 - 44 / 2M 42 - 4
3 - 65 / 3M 6.33 - 6
4 - 87 / 5M 104 - 8
6 - 1210 / 76 - 12
8 - 1614 / 10M 168 - 16
10 - 2020 / 1410 - 20
15 - 2515 - 25
15 - 3028 / 20M 2515 - 30
20 - 3020 - 30
20 - 4040 / 28M 4020 - 40
30 - 4030 - 40
30 - 5060 / 4030 - 50
30 - 60M 6330 - 60
400 / 50036 / 25D 3928 - 40
325 / 40040 / 36D 4638 - 45
270 / 32550 / 40D 5445 - 53
230 / 27063 / 50D 6453 - 63
200 / 23080 / 63D 7663 - 75
170 / 200D 9175 - 90
140 / 170100 / 80D 10790 - 106
120 / 140125 / 100D 126106 - 125
100 / 120160 / 125D 151125 - 150ROUGH
GRINDING
80 / 100D 181150 - 180
70 / 80200 / 160D 213180 - 212
60 / 70250 / 200D 251212 - 250
50 / 60315 / 250D 301250 - 300
40 / 45400 / 315D 426355 - 425
35 / 40500 / 400D 501425 - 500

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