Resin Daimond Grinding Wheel, Solid CBN Inserts, Vitrified Daimond Grinding Wheels, PCBN Inserts, PCD Inserts manufacturers in China
Zhongtu Superhard Material Co., Ltd
sale@ztsuperhard.com
+86 17329325308
Diamond grit size
Diamond grit comparison chart: w3.5 2-4 6000 w5 3-6 4000 w10 6-12 1800 w20 12-22 1000 w28 20-30 700 w40 30-40 450 w50 36-54 325/4002020-05-162815
CHINA (GB/T-ISO)JAPAN JIS4130-1982FEPA-1997
Grit (GB/T)Grit (ISO)Size (μm)GritSize (μm)GritSize (μm)
16/18201180/100016/181180/1000D11801180/1000
18/20221000/85018/201000/850D10011000/850
20/2524850/71020/30850/600D851850/710
25/3030710/600D711710/600
30/3536600/50030/40600/425D601600/500
35/4040500/425D501500/425
40/4545425/35540/50425/300D425425/355
45/5050355/300D356355/300
50/6060300/25050/60300/250D301300/250
60/7070250/21260/80250/180D251250/212
70/8080212/180D213212/180
80/10090180/15080/100180/150D181180/150
100/120100150/125100/120150/125D151150/125
120/140120125/106120/140125/106D126125/106
140/170150106/90140/170106/90D107106/90
170/20090/75170/20090/75D9190/75
200/23018075/63200/23075/63D7675/63
230/27024063/53230/27063/53D6463/53
270/32528053/45270/32553/45D5453/45
325/40032045/38325/40045/38D4645/38
M36/54W4054/36400#37/34M4550/40
M22/3622/36500#34/28M3540/32
M20/30W2830/20600#28/24M2532/25
M12/2222/12700#24/20M2040/25
M10/20W2020/10800#20/14M20A30/25
M8/1616/81000#16/13M20B40/30
M8/1212/8----
M6/12W1412/61200#10/13D1525/15
M5/10W1010/51500#8/10D15A15/10
M4/8W78/42000#8/6D15B20/15
M3/66/32500#6/5D15C25/20
M2.5/5W55/2.53000#5/4D710/5
M2/44/24000#4/3D35/2
M1.5/3W33/1.55000#3/2D12/1
M0/2W1.52/08000#2/1D0.71/0.5
M0.5/1.5W11.5/0.515000#1/0D0.250.5