Dth Bit Posted By jinquanrockdrillingtools -
China
Summary: dth bit 1 90mm 555mm 2 hammer dhd340 dhd350 dhd360 dhd380 cop44 cop54 cop64
Down-hole Bit Posted By jinquanrockdrillingtools -
China
Summary: dth bits pressure diameter ranges 66mm 205mm equip jq hammers shank drawing 76mm
Cross Bit Posted By jinquanrockdrillingtools -
China
Summary: cross bits 1 tapered connection 6 7 11 12 2 threaded r22 r25 r28 r32 r38 t38 t45