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Diamond Grains Size Comparation Chart
CHINA GB6406.1 INTERNATIONAL ISO 6016 79 EUROPE FEPA U. S. A. ANSI JAPAN JIS GERMANY DIN
Grit No. Size Ranges (¦Ìm) Grit No. Size Ranges (¦Ìm) Grit No. Size Ranges (¦Ìm) Grit No. Size Ranges (¦Ìm) Grit No. Size Ranges (¦Ìm) Grit No. Size Ranges (¦Ìm)
16/18 1180/1000 1181 1180/1000 D1181 1180/1000 16/18 1180/1000        
18/20 1000/850 1001 1000/850 D1001 1000/850 18/20 1000/850        
20/25 850/710 851 850/710 D851 850/710 20/25 850/710        
25/30 710/600 711 710/600 D711 710/600 25/30 710/600 30/36 710/590    
30/35 600/500 601 600/500 D601 600/500 30/35 600/500 36/40 590/500 D550 630/500
35/40 500/425 501 500/425 D501 500/425 35/40 500/425     D450 500/400
40/45 425/355 426 425/355 D426 425/355 40/45 425/355 40/46 420/350 D350 400/315
45/50 355/300 356 355/300 D356 355/300 45/50 355/300 46/54      
50/60 300/250 301 300/250 D301 300/250 50/60 300/250 54/60 290/250 D280 315/250
60/70 250/212 251 250/212 D251 250/212 60/70 250/212 60/70 250/210 D220 250/200
70/80 212/180 213 212/180 D213 212/180 70/80 212/180 70/80 210/177    
80/100 180/150 181 180/150 D181 180/150 80/100 180/150 80/90   D180 200/160
100/120 150/125 151 150/125 D151 150/125 100/120 150/125 90/100 149/125 D140 160/125
120/140 125/106 126 125/106 D126 125/106 120/140 125/106 100/120 125/105 D110 125/100
140/170 106/90¡¡ 107 106/90¡¡ D107 106/90¡¡ 140/170 106/90¡¡ 120/150 105/74 D90 100/80
170/200 90/75 91 90/75 D91 90/75 170/200 90/75        
200/230 75/63 76 75/63 D76 75/63 200/230 75/63 150/220 88/63 D65 80/63
230/270 63/53 64 63/53 D64 63/53 230/270 63/53 220/240   D55 63/50
270/325 53/45 54 53/45 D54 53/45 270/325 53/45 240/280 53/44 D45 50/40
325/400 45/38 46 45/38 D46 45/38 325/400 45/38 280/320 44/37