Stepped drill is used to drill out the solid material through holes or blind holes, and to the existing hole reaming tool. Apply to steel, stainless steel, the tune of hardened steel, non-ferrous metals. I plant for the production of automobile and motorcycle engines diesel engines, carburetors, mold manufacturers to provide a variety of molding tools. The major products supporting the processing center, CNC machine tools and other high-precision machine tools to use.

Tools Co., Ltd. Changzhou too good with excellent technology, advanced equipment, rich experience in the cutting tool industry has accumulated a good reputation, now we have a number of important domestic and foreign customers, such as Volkswagen, Bosch Automotive, Shanghai General Motors, Shanghai Electric Wait.

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