Tapered Drill Bits Rock Drilling Tools construction tools

2020 high performance 40mm 7 Degree Tapered Drill Bits Rock Drilling Tools construction tools Product description: Tapered drill bits consist of mining and tunneling two series, with higher drilling efficiency, longer service life, better powder-discharge, better wear-resistance and impact-resistance, easier bit-back performance etc., widely used in metal mine, quarry, tunneling, hydro-electrical engineering and so on. Types of drill tools: Rock Drill Tools include Tapered Drill Bits, Threaded Drill Bits and DTH Hammer Bits. Parameter of drill bit tools Product name Tapered drill bits Type Drill Bit, 7 degree tapered drill bits Material Carbide, carbide/PDC button Use Ore Mining Application soft rock/medium hard rock/hard rock Carbide button shape: ballistic/ogive button Head design: Concave/Flat/Convex