What it does: grinds and polishes the nock and nock section of arrow shafts to create a flat, consistent fit for reliable nocking and launch. Broad compatibility: works with carbon, fiberglass, and aluminum arrows and is compatible with most arrow shaft types and sizes. Use it on shafts of different materials without switching tools. Smooth, low-effort operation: the striped knob design improves grip and prevents slipping so you can apply less force while maintaining control. Rotation is stable and precise, producing an even, polished surface. Reliable performance: fitted with high-quality bearings for smooth rotation and consistent grinding, reducing chatter and helping you achieve uniform results across multiple arrows. Practical and durable: built to handle repeated use during tuning and maintenance. Ideal for finishing nock seats and removing small imperfections that affect arrow alignment and flight. Use scenarios: Bowhunters tuning arrows in the field to ensure quick, secure nock engagement before a hunt. Archery coaches and club technicians preparing sets of arrows for consistent performance during practice and competitions. DIY arrow builders and hobbyists finishing newly assembled arrows for a precise nock fit and smoother launch. Key attributes: Function: nock and nock-section grinding and polishing for a flat fit Compatibility: carbon, fiberglass, and aluminum arrows; fits most shaft types Design: anti-slip striped knob for controlled, low-force operation Performance: stable, precise rotation with high-quality bearings for smooth polishing How it helps: Saves time by speeding up nock prep and polish work Improves consistency between arrows for better grouping and predictable flight Reduces hand fatigue with an ergonomic, slip-resistant grip and smooth rotation Instructions for use (concise): Secure the arrow shaft, position the nock section against the tool, rotate with steady pressure using the striped knob, and check fit frequently until the desired flatness and polish are achieved. No unnecessary features or complicated setup — a focused tool to make nock fitting faster, safer, and more consistent.