CIR series low air pressure DTH bits
12" High Air Pressure DTH Bits
8" High Air Pressure DTH Bits
6" High Air Pressure DTH Bits
10" High Air Pressure DTH Bits
5" High Air Pressure DTH Bits
4" High Air Pressure DTH Bits
3" High Air Pressure DTH Bits
1-2" Middle Air Pressure DTH Bits