- Durable Aluminium Construction: Crafted from high-quality aluminium alloy, this tool offers exceptional stability and long-lasting performance, ensuring it won't deform over time. - Precision Fret Adjustment: Easily level frets and adjust fretboard radii to enhance your instrument's playability. Achieve professional results with minimal effort. - Two-Way Grinding Jet: Each sanding block features two distinct radii, designed to optimize efficiency for both guitar and bass setups. Switch between radii to suit your specific needs. - Protective Design: Engineered to protect your instrument from scratches during the levelling process, delivering a flawless finish every time. Use Scenarios: - Ideal for luthiers and hobbyists looking to set up their guitars or basses with precision. - Perfect for maintaining your instrument's playability during routine maintenance or repairs. - Great for musicians who want to enhance their instrument’s performance without the need for professional help. This tool combines functionality and compatibility, suitable for various string instruments. Its robust material and thoughtful design ensure effective adjustments while safeguarding your instrument's integrity.