The company specializes in producing all Spray metal sucker rod coupling kinds of drill bits, carbide and high speed steel material comprises, layer for the famous German brand Balzers, I produced a spiral groove drill, drill a spiral groove drill in a widely used mechanical processing, automobile , mold and other types of machinery and processing areas. Tools Co Ltd Changzhou too good bits, cutter, reamers, taps, non-standard knife,Drilling Crossover Subs tree cutters, spiral groove drills, straight flute drills, step drills, deep hole drilling with internal Oilfield robot for safety platform operation coolant holes drilled, taper ball cutters, Minimaster cutter, cutter aerospace Christmas special, molding knives, ordinary end mills, and other products.