DTH Bit-BR3-90

Rock drilling tools ProDrill offers DTH Hammer Bits with BR shank type are available in a full range of sizes and with a number of custom design features for optimum performance in a rock formation, which are designed to match all conceivable applications for water well industries, stone quarrying, mining and construction.

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.

BR shank DTH drill bit with flat face, 13 semi-ballistic carbide buttons.

DTH hammer & bit fitting

For more details please watch PDF online: DTH hammer bits with BR shanks Catalogue