Material: Tungsten steel, shank diameter: 6mm, drill head size: 10mm Convenient control, using simple, safe and reliable, reduce labor intensity, improve the working environment Use: Processing of all kinds of metals (including all kinds of hardened steels) and non-metallic (such as marble, jade, bone). High Quality: High efficiency, high quality workmanship, long service life, good economic returns. Easy to use, safe and reliable, can reduce labor intensity. Design: Mechanical parts chamfering, rounding and grooving. Double room is crossed lines, not easy to block the lines, more suitable for the object of relatively low density material. Product Size: 5pcs 50-60mm Rotary Burr Set Feature: The process of various metal and non-metal sculptures. Ideal for processing all kinds of metal (including all kinds of hardened steel) and non-metal (such as marble, jade bone), machining hardness reach HRA85. Easy to work on the high precision of various shapes of mold cavity, have good machine quality and high degree of fineness. The carbide rotary file is generally used with a manual or pneumatic drive (can also be used in a machine tool). The service life is long, 10 times the durability of high speed steel milling cutter, 200 times the durability of small wheels. The speed of electric or pneumatic tools is usually 6000-50000 revolutions per minute. Specification: Material: Tungsten Carbide Steel Cutting edge diameter: 10 mm Shank diameter: 6mm Total length: 50-60mm Usage: - Cleaning of gasket, grain and weld of joint, forging and welding. - Finishing of all kinds of metal molds. - Passage of the finishing treatment turbine. - A variety of mechanical chamfering, round and groove parts. - Surface of the inner hole of the finishing of the machine parts. Includes: - 5pcs Carbide Rotary Drill Bit Tool Warm Tips: 1. Carbide rotary file in the use of pneumatic or power tools, the speed is usually 6000-40000 r / min, you need to tighten the tool. 2. The cutting direction should be moved from right to left, not like using the grinding wheel as a reciprocating cut. Be careful not to force too much (the pressure usually does not exceed 4 kg).