Rotary Tool Accessory Kit Tungsten Steel Carbide Rotary File Applicable for Wood and Metal Drilling In Room Decoration 7XEAOOTDTYFeatures: Made of high quality tungsten steel, can be used to process iron, steel, carbon steel, alloy steel, copper, aluminum and other metals and marble, jade, bone and other non-metal.High production efficiency, the processing efficiency is several times higher than file, nearly 10 times higher than small wheel stalk.The machining efficiency is ten times higher than the manual file tool, and almost ten times higher than the small grinding wheel with the handle. In principle, the mining set can take place on the smHigh product processing quality, high finish, can process out a various of high-precision mold cavity.Long life, the durability is 10 times higher than high-speed steel cutting tool, 200 times higher than small grinding wheel.Specification: Material: Cemented CarbideHead Diameter: 6mmRod Diameter: 3mmColor: As pictures shownQuantity: 10pcs\/setPackage Includes: 1 Set Rotary Filesnote: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you place order.2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you