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Fitting adapters for connecting drill rig and drill bit, which two have different thread types, apply to construction and engineering industry etc.

 We (HOLLYLAND CO., LIMITED) manufacture different drilling tools and accessories for international markets with superior quality, apply to geological prospecting, exploration etc;
The main drilling accessories (core drill spare) include drill rod, fitting adapters, hoisting plug, wrench, water faucet, clamp holder, winch, overshot assembly, double core barrel, reducing joint, Alloy free pliers, diamond free pliers, casing, casing rod tap, casing pliers, casing shoe bit, core barrel complete assembly, outer tube, inner tube, core lifter, core case, stop ring, landing ring, locking coupling etc…