- Compatible with Various Arrows: suitable for carbon, fiberglass, and aluminum arrows. Can grind the nock and nock area to achieve a flat fit. - Effortless and Smooth Polishing: striped knob design reduces required force and prevents slipping, providing a labor-saving and smooth polishing experience. Rotation is stable and precise, delivering a clean, polished finish. - Wide Compatibility: works with most arrow shafts across types, adapting well to different diameters and styles. - High-Precision Bearings: equipped with high-precision bearings for smooth rotation and enhanced grinding performance. Use scenarios: - Arrow setup and tuning at home or on the range: grind the nock area on carbon, fiberglass, or aluminum arrows for a flat, flush fit to improve flight consistency. - Maintenance and repair: rework nock seats on diverse shafts to restore fit and rotation. - Workshop batch processing: efficiently handle mixed shaft types with consistent polishing and grinding results.