Rockmore International announces a new drill bit design especially suited for hard rock quarry drilling. The new CrossFlow bit is designed to help extend bit life and improve penetration rates for percussive drilling applications in abrasive and challenging rock conditions.
The CrossFlow bit incorporates new design features in the bit face, particularly in the geometry and placement of flush holes, flush grooves and tungsten buttons. The intent of the new bit geometry is to remove the broken rock chips, that result from the percussive blows, away from the bit face and up toward the hole annulus as quickly and effectively as possible. The flush holes are placed strictly near the center line of the bit in order to help the flushing medium, usually compressed air for quarry drilling, to more effectively push the rock cuttings away from the bit center towards the bit edge; the flush holes are located within newly designed, V-shaped flushing grooves. The tungsten buttons are placed strategically around and between the flushing holes and grooves such that the carbide buttons contact the rock most effectively with each percussive impact from the bit to the rock face.
For more information, visit www.rockmore-intl.com.