DTH Bit, DTH Hammer, Button Bit manufacturer / supplier in China, offering Fast-Penetration 32mm Tapered Chisel Bit – Mining-Grade Carbide Drill Tool, Heavy-Duty Tungsten Carbide Chisel Bit – 30-50mm for Aggressive Rock Drilling, Premium 30mm Tapered Connection Chisel Bit – High-Performance Mining Carbide and so on.