1.Hybrid cutter design,special for foundation work, to improve the abrasive resistance of bits.52 pieces tungsten carbide cutters,7 rows, to reach the full bottom hole coverage.

2.Full coverage design can protect the body of cone, increase of service life,keep the cone from worn by rock debris.

----adequate stocks

----factory direct

Modes of transportation:by sea, by air or land transportation, Of course, a small amount can also by Express.