... SpecificationsRock Drilling Tools:Retract Button Bits, Chisel Bits,Drill Rods,DTH Hammers & Bits,Shank Adaptors,Coupling ... the following: 1. Top-hammer drilling tools including drill bits, coupling, taper rods, integral rods, extension ... drilling tools including the diamond core bits(BQ, NQ, HQ, PQ, TT, T2, T6, etc), reaming ... products and hearted service. Tricone Drill Bit/Rotary Drilling Rig/Hot ...