U Drill, Carbide Inserts, End Mills manufacturer / supplier in China, offering CNC Internal Grooving Lathe Tool Holder Sngr Micro Hole Indexable Lathe Specification, Nc Lathe Machining Cutting Toolholder Metal Grooving Blades, Grooving CNC Lathe Machining Cutting Toolholder Metal Grooving Blades Zq1616r-2 Zq2020r-2 Zq2525r-2 and so on.