... Drill rods with Shank H22x108mm,(6,7,11,12 degree taper) taper rods in most lengths.button bits, cross type bits and chisel bits ... design: Flat face, drop centre, Normal and retrac body.tungsten carbide(Buttons):Spherical, ballistic and Conical.(Threaded R32, T38, T45, ... , CIR110, CIR150,CIR170etc,DTH drill bits:60mm-254mm bits with flat face, concave design fit for the atlas copco and ingersoll-rand ...