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Tricone Bit PDC Bit DTH Bit Mine & Core Bit Drag Bit Roller Cutter

12 1-4 IADC635 coal and mineral hole blasting tungsten carbide conical tooth tricone button bits

API oil quality 12 1-4 in TCI tricone button bits for groundwater boring

311mm 6 and 5 wings matrix body fixed cutters PDC diamond drill bits for well drilling

66mm AW BW thread well grouting drilling flat face PDC diamond drill bits

Premium Quality oilfields and geothermal well drilling 346mm 13 5-8 inch matrix body PDC bit

AQ BQ HQ NQ PQ Diamond Impregnated core bits for granite quartz hard rock coring

171mm monitoring well drilling rock roller bits for hard rock drilling

165 mm boring machine tungsten carbide insert tooth tricone bit for geological drilling

10 5-8 inch oil and water borehole rotary drilling PDC bits for hard rock drilling

customized 17 1-2 inch oil quality steel and matrix body high speed drilling PDC bits for soft medium formation drilling

factory supply 17 1-2 inch 445mm medium hard rock drilling bits tricone roller bits for gravel sandstone

API 374mm 14 3-4 inch IADC537 517 CS vertical water well drilling HDD pilot tricone bit for soft to medium formation

API high quality 12 1-4 in 5 blades vertical well drilling petroluem and hole boring PDC rock bits

7 1-2 inch 190mm 6 blades fixed cutters diamond drill bit center drilling PDC bit

API 171mm 6 3-4in IADC532 open bearing rotary drilling hole blasting coal mining TCI tricone bits

311mm chuanshi CS brand new rotary drill TCI tricone bits for sandstone and limestone drilling