4 3/4'' inches 120mm IADC537 Tricone rock drilling bit water well drill bit
5 1/4''inches 133mm sealed bearing water well drilling TCI tricone rotary roller cone bit
6"(152.4mm) tricone drill bits for non-excavation IADC637 tricone tooth bit
200mm IADC537 Tungsten Carbide Tricone Drill Bit
8 1/2'' inch 215.9mm IADC537 Three Roller Cone Bits for Deep Well Drilling
6 3/4'' iadc code 637 hard rock drilling tci triocne drill bit
9 7/8'' 250.8mm IADC537 Tricone Three Roller Cone Drill Bit
23"IADC115 rubber sealed bearing milled tooth tricone drill bit
Our main products: tricone bits, PDC bits, HDD hole opener, foundation single roller cutters,drag bit and related tools
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