- Compatible with various arrows: Suitable for carbon, fiberglass, and aluminum arrows. Can be used to grind the nock and nock section for a flat fit. - Effortless and smooth polishing: Striped knob design minimizes slipping and reduces effort. Rotation is stable and precise, delivering a smooth, polished finish. - Wide compatibility: Works with most arrow shafts, regardless of type. Adapts well to diverse shaft designs. - High-quality bearings: Equipped with high-quality bearings for smooth rotation and improved grinding performance. use scenarios - Prepare arrows for target practice or competition by shaping nocks on carbon, fiberglass, or aluminum shafts to achieve a flat-fit surface. - Maintain and tune arrows to ensure consistent flight across different shaft materials through reliable grinding and polishing. - Perform quick arrow maintenance in field or club settings where reliable nock grinding and polishing is needed.