Carbide tipped cross bits from Crowder Supply braze tungsten carbide inserts onto a cross-shaped, heat-treated alloy steel head for percussive drilling in hard, abrasive rock. Thread options span D, H, R25 through R38 and T38 through T51 with face diameters from 1-1/4 in. to 5 in., and the four-wing cutting structure keeps holes straight in the fractured, jointed ground that deflects other rock drill bits.
Chisel-edged carbide cuts hard formations while wedge-shaped inserts speed penetration in medium ground, and integrated air or water flushing clears cuttings from the face. Cross bits thread straight onto hex shanked drill steel or extension rods in the matching system. In consistently hard, abrasive rock where gauge wear is the enemy, a carbide button bit often outlasts a blade profile the rock drill bit buyers guide compares the two head styles.
- Thread options: D, H, R25, R32, R38, T38, T45 and T51 to match your drill steel
- Face diameters from 1-1/4 in. through 5 in.
- Chisel-edged carbide for hard rock; wedge-shaped inserts for faster penetration in medium formations
- Cross-shaped cutting structure resists deviation in fractured, jointed and seamy ground
- Tungsten carbide inserts brazed to a heat-treated alloy steel body
- Air or water flushing passages clear cuttings and keep the face cool
- Applications: mining, quarrying, tunneling, rock bolting, foundation and water well drilling
- Stocked by Crowder Supply in Denver in popular thread-and-diameter combinations
