... sizes 3:ISO Certificated 4:Long service life DTH drill rods1,Top-hammer drilling tools including thread button bits(R25,R28,R32,R38 ... /MF rods, extension rods, shank adapter, etc2,DTH drilling tools including Air DTH hammer,DTH bits with COP, DHD, QL, MACH, MISSION ... ,WF,WG,etc), reaming shell, core barrel and drill rods.etc.5,Rock anchor tools, IBO anchor system( anchor rods, anchor bits ...