DTH Bit-BR2-76

Rock drill bits Shank type: BR2, BR3; and DTH drill bits hole diameter: 3", 4", 5", 6", 8"(85mm-350mm).

Convex Face

A classic design for soft to medium hard rock formation which is not so abrasive. This design have very excellent penetration rate but poor in hole deviation if rocks are hard.

For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce the load and wear on the gauge buttons, but poor hole deviation control.

Semi-Ballistic/Parabolic Buttons

Excellent penetration rate, but only suited to medium hard and not so very abrasive rock formation.