Carbide Drill, Carbide End Mill, Carbide Reamer manufacturer / supplier in China, offering Avichf High Precision Grooving Tools Boring Bars Coated Mir 29 Degree, Avichf Mir 30 Degree Coated Micro Boring Grooving Tools for Deep Hole Undercuts, Avichf Mir 60 Degree Micro Boring Bar with Grooving Insert for Deep Hole and so on.