DTH Drill Hammer Bit NUMA100-305

Product Description

NUMA shank DTH drill bit with 305mm diameter, concave face, dome carbide buttons for blasting bore holes, water well drilling.

Rock drill bits Shank type: NUMA120; and DTH hammer bits hole diameter: 3'', 4'', 5'', 6'', 8''(85mm-350mm).

Down the hole rock tools (drilling tools) are rock drilling equipment which takes compressed air as power source to partially transfer impact power into drilling holes. An air distributing device in a top hammer controls a piston to move back and forth. An impact device arranged in the front of the top hammer transfers the impact power to a down-the-hole bit to crush rocks.

ROSCHEN is rock drilling tools factory manufactures, we have high quality DTH drill Bits with NUMA shank type are available in a various 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 drilling, stone quarrying, mining and construction.

Concave Face
The all around application bit face designed specifically for medium hard and homogeneous rock formations. Good hole deviation control and good flushing capacity.
Dome/Hemispherical Buttons
Universal buttons for all rock formation, best suited to hardest and very abrasive rock formation.