Make the products according to 6480-2002<<CEMENT CARBIDE ROCKBIT>>,and have approved ISO9001:2000Quality System.

1)Raw metairls:50MnMo, 95CrMo.

2)Shank size:H22χ108mm(7/8''χ4¼''),H25χ108mm(1"χ4¼")

3)Diameter:20mm,22mm,23mm,25mm,30mm,32mm,34mm,38mm,39mm,40mm.