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A wide range of full grip wrenches are available in CDG. They are designed for use with inner and outer tubes. There are diamonds or tungsten carbides on the grip wrench surface which are used to protect the tubes surface from being damaged.

1. BO/NO/HO/PO Inner Tube Wrench
2. BO/NO/HO/PO Rod Wrench

China Drilling Geological Equipment Ltd. is a professional manufacturer of drilling tools. Main products cover impregnated synthetic diamond core bits, surface-set diamond bits, PDC core and noncoring bits, rod shoes & casing shoes, reaming shells, drill rods, core barrels, overshots, water swivels, hoisting plugs, casing cutter assembly, adapter subs, wrenches (grip wrenches/rod wrenches/inner tube wrenches), recovery tools and foot clamps. Our products are mainly used for geological prospecting.

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