... insetTapered button bits (28mm, 30mm 32mm, 34mm, 36mm, 40mm, 42mm, 44mm and so on with different degree taper)Tapered Rod ... (Rod 19mm, 22mm, 25mm; Shank hex. 19mm, 22mm, 25mm)Integral Drill rods( Chisel ... ,102mm,115mm, 127mm.)Down the hole drilling(drill bits, hammers, spare parts, drill tubes)Buttons type :Spherical, Ballistic Drill rods,drill bits,Button Bits