- Efficient Grinding: equipped with three grinding holders and two high-quality grinding wheels, this sharpener delivers fast and precise sharpening. Restore the cutting edge of your drill bits quickly and save time on your projects. - Versatile Compatibility: designed to cover 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 keep tips in top condition. - Easy to Use: simple, user friendly design for professionals and DIY enthusiasts. Keep drill bits sharp with minimal effort and improve drilling accuracy and productivity. - Sturdy Construction: built with robust materials for durability. Withstands regular use and maintains performance over time to ensure your drill bits cut cleanly again and again. - Applications: use in a professional workshop to sharpen high speed steel, carbide, cobalt and tin bits; in a DIY garage for on demand maintenance; during metalworking or woodworking projects to extend tool life and improve results.