The ball-tooth drill bit is composed of cemented carbide column teeth inlaid on the drill bit body. Compared with the chip drill bit, the ball tooth drill bit has free tooth arrangement, and the number and position of the edge and middle teeth can be reasonably determined according to the diameter of the chisel hole and the size of the rock breaking load, and the diameter of the drill bit is not limited. And because it is multi-point crushing, the rock-breaking efficiency is higher, which can effectively eliminate the blind area of rock-breaking and avoid the repeated crushing of cuttings. Its non-grinding life is longer and the regrinding workload is small. It shows high value under the operating conditions of rock trolley and deep hole mining.
