Features 1、The tungsten steel rotary file has a wide range of uses and is used in mold processing and manufacturing. 2、This product can be used for beveling, rounding and grooves processing of machine parts. 3、Can process cast iron, cast steel, carbon steel, alloy steel, stainless steel, copper, aluminum and other metals, as well as non‑metals such as marble and bones. 4、This file has good processing effect, high finish after processing, and long service life. 5、With small size, easy to carry and store, convenient to use and with good performance. Specification Item Type: Rotary Cutter Files Material: Tungsten steel Shank Diameter: Approx. 6mm / 0.2in Total Length: Approx. 96 ~ 100mm / 3.8 ~ 3.9in Drill Bit: Approx. 12 x 10mm / 0.5 x 0.4in Package List 1 x Rotary Cutter File