Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si [Application]This diamond Drill Bit Sharpener is mainly used for grinding iron drills, not suitable for other high hardness drills. [Easily Increase the Life of Drill Bits]Forget the days of trying to find the angle by hand or accidentally tapering the edge of your . the utilization of drill bits, solve the troubles you have been buying drill bits, save time and save money. [Reliable and Efficient]Compact and portable drill grinding tool, this drill bit sharpening tool with your drill to keep bits sharp and for . [Material]Made of high-quality ABS plastic and corundum grinding ,high hardness, rustproof, solid and durable,it can grind iron drill bit very , and it is durable and not easy to damage. Specifications: Type: Corundum Drill Bit Sharpener Fit for: 5/64 inch-1/2 inch(2-12.5mm) Iron-based Drill Bits Colour:Blue + orange Material:Plastic + corundum grinding Size:18.5*4cm Package Contents: 2 *Corundum Drill Bit Sharpener(included Grinding ) 2 *Replacement Grinding 2 *Wrench NOTE:The grinding currently equipped with this product is a brown corundum grinding , so the product is mainly used for grinding iron-type drill bits. Other high-hardness drill bits are not suitable for , and the loss will be relatively . Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.