The hardness of the bit is HRC 5, which can drill the hardest rock quickly.

Quartzite, chert ,taconite and banded iron are the right rocks for this bit.

DIAMOND CORE DRILL BIT (INTERNATIONAL STANDARD)

Wuxi Shifeng Company is an advanced supplier of diamond bits and drilling tools. It solves the difficult problem of rapid drilling in superhard and complex formations, and creates high profits for customers with large cost savings.