Revolutionary design: The professional edge-sharpening guide rail for milling cutters is made from high-density ABS and features a unique ceramic protective coating that guards cutters from scratches and provides long-term durability. Easy to use: Attach the angle guide to the cutter, hold with both hands, and slide with minimal pressure. The ceramic contact ensures an even touch for a precise edge. Improve sharpening efficiency: The guide enables beginners to sharpen tools with professional angle control, enhancing efficiency and providing stable support for a safe, smooth grinding path. Efficient solution: Lightweight and portable, this guide helps you reach the ideal sharpening angle with reduced effort and delivers optimal cutting performance. It is also suitable for sharpening stones for easy maintenance. Recommended use scenarios: - In a home workshop, restore router bits and milling cutters with consistent angles for reliable, repeatable cuts. - In a professional shop, sharpen multiple tools with repeatable angles to improve throughput and edge quality. - On-site or during field projects where portability and quick setup are important to keep tools sharp and ready.