... pick cutter tools.1.Integral drill steels(Integral Drill Rods)Shank H22x108mm, H19x108mm,standard hex, Bit diameters include 20-42mm ... :Flat face, drop centre, Normal and retrac body.tungsten carbide(Buttons):Spherical, ballistic and Conical.(Threaded R32, T38, T45,T51, bit ... sleeve(threaded R22,R25,R28,R32,R38,T38,T45,T51)Shank adapters-carburized and manufactured with tight tolerances and controlled ...