Specifications 1)Tapered:4,6,7,11,12
2)Material:42CrMo & YK20
3)Mainly used in stoning,coaling,metaling
4)Bits diameter:20-60mm
Bits diameter Carbide size Taper Water hole Part NO. 20(25/32") 6*12 4° 2 Y120-415 22(55/64") 6*12 4° 2 Y122-415 24(15/16") 8*13 4° 2 Y124-415 26(1 1/32") 8-10*13.5-10 4° 2 Y126-415 ........ 60(2 23/64') 8--10*13.5-18 7 2 Y160-722