Description: For 2-12.5mm drill Wear-resistant, anti-rust, waterproof, dustproof, portable for grinding drill bits, suitable for most electric drills Using this sander with an electric drill keeps the drill bit compatible with sharp and ready to use, saving a lot of money. Made of high-quality materials, wear-resistant, rust-proof, waterproof and dust-proof. Just use your drill bit to rotate 100 grindstones, and then press the drill bit on the drill bit to get compatible with sharp edges immediately. Specification: Colour: blue Material: Corundum, ABS Features: wear-resistant, rust-proof, waterproof, dust-proof, portable Size: Length: 170mm / 6.7 ", width: 85mm / 3.35" Drill diameter: 6.35 mm / 0.25 inch (approx.) Note: Due to different lighting and screen settings, the color of the project may be slightly different from the picture. Due to different manual measurement methods, slight dimensional differences may be caused. for Stanley Cup Made of high-quality ABS plastic and brown corundum grinding wheel, High hardness, rustproof, solid and durable Improve the utilization of drill bits, solve the troubles you have been buying drill bits, save time and save money Compact drill grinding tool, Use this drill bit sharpening tool with your power drill to keep bits compatible with sharp and ready for use This diamond Drill Bit Sharpener is mainly used for grinding iron drills, not suitable for other high hardness drills Portable tools that you can carry around and don't take up space in your backpack