Description

The drill collar is mainly used to provide bit weight to drill bit so that drill pipe is in tension. Especially drill collar can keep drill bit centralized and hole track by large rigidity. MS brand drill collar are manufactured strictly from API Spec.7 and SY***4 standard.

Our company is a manufacturer who produce and export drill bits. We have a Export Department, which specialize in the export of various products made by ourselves including Drill bits, Drill collar,  drill Pipe, tricone bits, PDF bits, Diamond drill bits, TCL bits and so on. During the twenty years, we have built good business relationships with customers abroad, such as America, Japan, Korea, Germany and so on. Thus the stable supplies, the quality as well as the flexible ways doing business can be reached.