Versatile compatibility This drill bit sharpener is designed to provide a wide range of bit sizes: 2-4 mm, 4-8 mm, 8-16 mm. It is suitable for sharpening high speed steel, masonry, carbide, cobalt and tin drill bits to ensure your tools stay in a tip condition. Portable and compact The portable design makes it easy to carry and use wherever you need it. Whether you are working in the garage, workshop or on site, this drill bit sharpener is a convenient addition to your toolkit. Efficient grinding Equipped with three grinding holders and two high-quality grinding wheels, drill bits deliver fast and precise sharpening. Restore the cutting edge of your drill bits quickly and save you time and effort for your projects. Easy to use With its uncomplicated design and user-friendly operation, this drill bit sharpener is suitable for both professionals and DIY enthusiasts. Keep your drill bits sharp and efficient with minimal effort and improve your drilling accuracy and productivity. Use scenarios In the garage or workshop, routinely sharpen HSS, masonry, carbide, cobalt and tin drill bits to extend tool life and maintain performance. On site projects or fieldwork, quickly restore a sharp cutting edge to worn bits to complete tasks without delays. For professionals and DIYers alike, maintain a reliable set of sharp drill bits to ensure accurate drilling and higher productivity.