4PCS Drill Bit Sharpener Set Why you need it Restores dull drill bits quickly so tools cut cleaner, last longer, and save you the cost of replacements. Improves drilling accuracy and speed, reducing work time and material damage on every job. Key benefits and features Complete set: four drill bit sharpeners included to cover multiple drilling needs and keep a variety of bits ready for use. Portable and lightweight: compact design fits in a toolbox or bag for easy transport between the workshop, garage, or job site. Simple operation: mounts to a grinder, set the sharpening angle, and sharpen without special skills. Designed for fast, repeatable results. Durable construction: molded from robust plastic for fatigue resistance and electrical insulation, built to withstand frequent use in varied working conditions. Consistent performance: helps achieve uniform edge geometry so bits cut more efficiently and last longer. How it works (quick steps) 1. Attach the sharpener to your grinder. 2. Position the drill bit in the jig and adjust the angle. 3. Apply the grinder briefly to re-sharpen the cutting edges. No specialized training required. Compatibility, size, and material Intended for use with a grinder as the power source for sharpening. Compact footprint for easy storage and transport. Constructed from high-strength plastic for durability and insulation. Practical applications Home DIY: Re-sharpen bits before a woodworking project to ensure clean holes and reduce tear-out. On-site construction: Keep replacement costs down and productivity up by restoring bits during installation tasks. Metal or mechanical workshops: Maintain cutting performance of frequently used bits to preserve machine time and part quality. What you get Four easy-to-use sharpening guides that help you maintain drill bit edges with minimal setup and reliable results.