Finished Ground Tungsten Carbide Spherical Button Bits For Rock Drilling Tools OD 6.25mm Height 9.9 The surface roughness Ra 0.4 Type: Spherical button bits Application: Suitable for drilling medium-hard or ... Read More
BIT 38 MM SR28(R28) for drifting ,tunneling and stone quarrying Made from high alloy steel and tungsten carbide as same grade as internationally well-known brand Apply hot (thermal) -insertion processing ... Read More