Surface Set Core Bit Hmlc

Surface set core bit is made by natural diamonds and steel. The natural diamonds are inserted the core bit matrix head, it is mainly used for higher penetration rates soft formation. In order to match different formations, we can supply different crowns for the surface set core bit. For example, step type profile surface set core bits have good penetration and drilling capabilities in the hard formation; multistep surface set core bit is performance better in common formations; semi-flat profiles surface set core bit works better in hard or broken formations. We can supply surface set core bit with AQ, BQ, NQ, NQ3, NMLC, HQ, HQ3, HMLC, PQ, PQ3, SQ etc sizes match for boart longyear. Xi'an Heaven Abundant Co.,Ltd is one of the professional China core bit manufacuters