CIR90 CIR110 CIR130 CIR150 CIR17 Low Air Pressure Big Hole DTH Hammer Drill Bits Product Description DTH bits are made of tungsten carbide and steel. Our DTH hammer bit adopts superior material to ...View More
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Low Air Pressure Dth Hammer Drill Bits Big Hole CIR90 CIR110 CIR130 CIR150 CIR17