Great - Model GNC628 -PDC Core Bit

Manufactured with very small, high quality natural diamonds mixed evenly through a metal matrix. The matrix hardness is chosen to suit the hard rock , so that it wears evenly throughout the life of the bit, exposing new sharp diamonds for cutting the formation efficiency.

Impregnated bits are designed to work as grinding tools and must work at relatively high rotation speeds, high bit loads compared to other types of diamond bits. It is essential that impregnated bits are well-cooled by the flush to prevent premature bit failure (air flush cannot be used with impregnated bits).