This nut and saddle sander is designed for final shaping and fast, precise height adjustments of instrument nuts and saddles. It keeps the workpiece vertical while sanding and delivers a square, flat surface in seconds. Key benefits Fast and reliable: allows fine adjustments to nut and saddle height in seconds after final shaping. Accurate and square results: the tool holds the nut or saddle vertical while you roll it over sandpaper on a flat surface, producing a truly flat and square contact surface. Precise control: an adjustment screw sets the exact amount of material to remove for repeatable results. Durable construction: wheels use hardened steel bearings for long life and consistent performance. Easy to use and install: lightweight and simple to operate, suitable for both workshop and field work. Improves efficiency: reduces time spent on trial fitting and sanding by providing controlled, predictable removal. Materials and performance Wheels: hardened steel bearings for durability and smooth rolling. Body: lightweight and durable design for easy handling and long service life. Performance: maintains vertical alignment of the workpiece and enables fine incremental removal via the adjustment screw. Typical applications Luthier workshop: final height and contact adjustments on guitar and other string instrument nuts and saddles before installation. and maintenance: quick corrective sanding when replacing or refitting nuts and saddles during instrument setups. Onsite setups: portable tool for mobile technicians who need consistent, accurate adjustments away from the workshop. How to use 1. Shape the nut or saddle to final form. 2. Mount the piece in the sander and set the desired removal amount with the adjustment screw. 3. Roll the sander over sandpaper on a flat surface until the contact face is square and flat. Compatibility and sizing Designed for use with most common instrument nuts and saddles. Check fit for unusually large or small parts. Compact and lightweight for easy handling and storage. This tool provides a practical, repeatable method for final nut and saddle adjustment, combining precision control with durable components for reliable everyday use.