... 1.Outside Diameter:89mm,thickness:9mm 2.Use:mining,water well,oil drilling. 3.Available in all sizes. 4 ... 127.140.168.mmWall Thickness:9-45mmMaterail:alloy steelUse:water well drilling,mining,oil drilling,building,machinery,trafficMethod:cold ... -4 .ST52.4USE:DTH bits DTH hammer,DTH drill rods ODEX,SYMMTRIX1.top hammer drilling tools inculding thread ... MACH,MISSION,SD,XL shank.Photos: 89MM drill pipes