Carbide Button Bits Dth Drill Bit Hammer Bit Drilling

Carbide Button Bits Dth Drill Bit Hammer Bit Drilling Description: Drop Center Bit ----For high penetration rates in soft to medium hard and fissured rock formations. Concave Face ----The all-around application bit face specifically for medium hard and homogeneous rock formations. Good hole deviation control and good flushing capacity. Convex Face ----For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash,