Gold Hart Copper Corp. is pleased to announce completion of the first-ever diamond drill hole at its Tolita gold-copper-silver-molybdenum porphyry target where the Maricunga Gold Belt meets the ...

Designed to cut large-diameter holes in thick metal more easily and more efficiently than twist drills or hole saws, annular cutters are considered to be industrial-grade tools. “Twist drills ...

The company’s fourth diamond drill hole returned 6.1m at 3.5g/t gold from 245m, including a high-grade 1.1m slice at 18.2g/t from 250m.

Twist drill A standard drill bit with two twisted, fluted cutting edges to remove material Wood Flat drill Has a flat face, a pin at the bottom, and two cutting edges. Allows for a flat blind hole ...