... DTH button bits, coupling, shank adapter, mining tools, button bits, cross type bits, drill rod. ... Drill rods with Shank H22x108mm,(6,7,11,12 degree taper) taper rods in most lengths.button bits, cross type bits and chisel bits ... centre, Normal and retrac body.tungsten carbide(Buttons):Spherical, ballistic and Conical.( ... ,DTH drill bits:60mm-254mm bits with flat face, concave design fit for the atlas ...