... 42-2,ST 45-4 .ST52.4USE:DTH bits DTH hammer,DTH drill rods ODEX,SYMMTRIX1.top hammer drilling tools inculding thread ... button bit ,copling,taper rods and bits,shank adpter and ... .2.DTH drilling tools including air DTH hammer,DTH bits with COP,DHD,QL MACH,MISSION,SD,XL shank.Photos: 89MM drill pipes