Stone Drill Bit

Posted By jifengtools -

China
Summary: stone drill bit diameter valid lenth segment height thread 6 5mm cbs6 5 86mm
Taphole Drill Bit

Posted By jinquanrockdrillingtools -

China
Summary: hearth blast furnace designed iron notch tap hole molten drawn periodically
Retrac Drill Bit

Posted By jinquanrockdrillingtools -

China
Summary: 1 tapered connection 6 7 11 12 2 threaded r22 r25 r28 r32 r38 t38 t45 t51 3