... degree taper) taper rods in most lengths.button bits, cross type bits and chisel bits with(6,7,11,12 degree taper).Bit ... design: Flat face, drop centre, Normal and retrac body.tungsten carbide(Buttons):Spherical, ballistic and Conical.(Threaded R32, T38, T45,T51 ... pressure hammers CIR65a, CIR90, CIR110, CIR150,CIR170etc,DTH drill bits:60mm-254mm bits with flat face, concave design fit for the atlas ...