What it does and why you need it Grinds and polishes arrow nocks and the nock section to create a clean, flat fit. Use it to correct uneven nock seats, remove burrs, or prepare new shafts so nocks seat consistently. Key benefits Saves time and effort: striped knob provides a secure grip for controlled, labor-saving polishing. Smooth, precise operation: high-quality bearings ensure stable rotation for even, repeatable results. Versatile compatibility: works with carbon, fiberglass, and aluminum arrows and fits most arrow shafts, so one tool covers all common shaft types. Main features Function: grinding and polishing of nock and nock section for a flat, consistent fit. Compatibility: suitable for carbon arrows, fiberglass arrows, aluminum arrows, and most arrow shafts. Design: striped knob for improved grip and reduced slipping during use. Performance: smooth, stable rotation driven by high-quality bearings for an even polished finish. Practical use scenarios Pre-competition prep: quickly true up nock seats across a set of arrows to ensure consistent seating before shooting. Range repairs: remove rough edges and restore a flat nock surface after field damage to get arrows back in service faster. Customization and tuning: polish nock sections when fitting aftermarket nocks or modifying shaft profiles for specific setups. Who it’s for Archers, bow technicians, coaches, and clubs who need a reliable, simple tool to prepare and maintain arrow nocks across multiple shaft materials. Notes on performance The combination of the secure knob and smooth-bearing rotation produces consistent, controlled grinding and polishing without excessive hand fatigue. Safe, repeatable results across common arrow materials.