1.Coal Cutter Pick-Shaped Bits Manufacturer 2.the head of tungsten carbide tip is sintered by vacuum 3.Conical bits coal cutter pick-shaped bits Application:used in a full line of tooling and accessories for Mining and Mineral ground tool,foundation driling,Horizontal directional drilling(HDD),Trenching,Hydraulic milling cutter,Tunnelling,Recycling,Forestmulching,Railtrack construction,Road ...