Forsun Surface set Diamond Core Bit The surface set diamond bit is produced from a single layer of natural diamond setting on the surface of bit crown with hard matrix. Surface set diamond bit is mainly recommended for drilling soft to hard for... - Update: 2012-01-10

PDC Core Bit Polycrystalline diamond cutters are set on the crown giving a very long working life, very fast penetration and high percentage core recovery in soft to hard rock formations. The bit may be used with air, mud, or foam flushing. PDC b... - Update: 2012-01-07