85-105mm DTH Drill Bit For 3 Inch High Air Pressure BR3/DHD330/COP32 DTH Hammer for Underground mining DTH Button Bit Description: HAMMER INCH BIT DIA(MM) BIT DIA(INCH) SHANK 1 64MM-76MM 2 1/2"-3" BR1 ...View More
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85 - 105mm Underground Mining Drill Bit For 3 Inch High Air Pressure BR3 / DHD330 / COP32 DTH Hammer