... Coupling, Shank Adaptors, Crossover Coupling, drifting rods, Tapered Rod integral drill steel, Retrac X-type bits, Cross Bits,high pressure ... for example: R22, R25, R28, R32, R38, T38, T45, T51 etc.) Drifter Rod ( Hex.32mm, 35mm, 38mm; Round 32mm, 38mm, ... ,89mm,102mm,115mm, 127mm.)Down the hole drilling(drill bits, hammers, spare parts, drill tubes)Buttons type :Spherical, Ballistic Tapered Drill Rod