Features Good working performance: sharpen the drill bits and improve their working performance. Use this drill bit sharpening tool with your drill to keep the bits sharp and ready to use. Instructions for Use Use an electric drill with chuck to drive this tool. This diamond drill bit sharpener is mainly used for sharpening iron drill bits and is not suitable for other high hardness drill bits. Practical drill sharpener: good sharpening effect, saving a lot of effort. Improve the use of drills, solve the problems you encounter when buying drills, save time and money. Durable to use: Corundum grinding wheel is wear-resistant. The drill bit sharpener is of high hardness, anti-rust, strong and durable. Compact and Portable Size - Light weight and compact size, easy to carry. Portable tools that you can carry and not take up space in your backpack. Specification: Material: Corundum + ABS + Steel Colour: blue. Package size: 19 x 8 x cm/7.5 x 3.1 x 1.6 inches Package weight: approx. 121 g/4.3 oz. Features: Abrasion resistant corundum grinding wheel. Sharpen drill bits and improve their working performance. Good sharpness effect, saving a lot of effort. Use an electric drill with chuck to drive this tool. Light weight and compact size, easy to carry. Package list: 1 x Drill Bit Sharpener 1 x key. Note: Please note that the new type and old type of this product will be sent at random, and make sure you do not mind before ordering. Package List