Precision sharpening for 3–12 mm drill bits: specifically designed to sharpen bits in the 3–12 mm range so your drill bits stay sharp and cut clean, accurate holes every time. Compatible with various angle grinders: engineered to work with a wide range of angle grinders, adding a fast, shop-ready sharpening option without the need for a dedicated bench grinder. Consistent, accurate results: precision engineering ensures repeatable edge geometry so you get uniform cutting performance and reduced bit walking or chatter. Rugged construction for real jobs: built to withstand frequent use on job sites and in workshops, providing reliable performance for professionals and DIYers alike. Easy to use and quick to adjust: straightforward design lets users make fast adjustments on the fly, so sharpening is simple even for less-experienced operators. Saves time and reduces cost: restore worn bits quickly on the spot instead of replacing them, keeping projects moving and lowering consumable expenses. Typical applications Construction and renovation: re-sharpen masonry and metal drill bits on site to maintain drilling speed and hole quality while working on framing, plumbing, or electrical installs. Metal fabrication and automotive repair: refresh cutting edges for clean, precise holes when drilling sheet metal, brackets, and components. Home workshop and DIY projects: keep wood, metal, and general-purpose drill bits ready for hobby and repair tasks without leaving the garage. Key attributes at a glance Function: grinding/sharpening of drill bits Compatibility: designed for 3–12 mm bits; works with various angle grinders Performance: precision sharpening for clean holes and consistent bit geometry Durability: rugged construction suitable for professional and home use Operation: user-friendly design with quick adjustments This tool solves the common problems of dull bits, slow drilling, and inconsistent hole quality by giving you a fast, reliable way to restore edges wherever you work.