... , Shank Adaptors, Crossover Coupling, drifting rods, Tapered Rod integral drill steel, Retrac X-type bits, Cross Bits,high pressure ... 25mm; Shank hex. 19mm, 22mm, 25mm)Integral Drill rods( Chisel Bit integral. Rod 19mm, 22mm; Shank hex. 19mm, 22mm)Thread ... ,89mm,102mm,115mm, 127mm.)Down the hole drilling(drill bits, hammers, spare parts, drill tubes)Buttons type :Spherical, Ballistic Tapered Drill Rod