... machines used in mining and construction. We manufacture rock drill bits and machines used in mining and construction scope. ... T45, T 51Chisel bitshead 32 / 34 / 36 / 38 / 40 / 42 / 43 with socket 22, 24, 25 and the taper 12 ... 6°, 7°Cross bitshead 32 / 34 / 36 / 38 / 40 / 42 / 43 / 44 / 46 with socket 22, 24, 25 and the ... 102 with thread R32, R38, T38, T45, T51Coal bitshead 28 / 42 / 44 Rock Drill Bits