neck curve dial meter Product name: Neck Curve Dial Meter Product function: This high-precision neck flatness dial meter measures deformation and bending of the neck, providing a reliable and clear measurement standard for assessing neck alignment. It eliminates the need for visual estimation, allowing for accurate adjustments to correct bending and deformation, helping to resolve issues such as fret buzz and string breakage. Instructions for use: Digital display advantages: Easier to read data with clear and precise numerical values. Pointer model advantages: Compact design and user-friendly operation. 1. Begin by calibrating to zero on a flat surface such as glass. Place the tool on the surface, loosen the screw in the upper right corner of the dial, rotate the large needle to zero, and secure the base at 0. For wooden guitars, position the tool up to the 12th fret, ensuring the feet at both ends rest on the frets. If the pointer reads negative, the fingerboard is concave; if positive, the fingerboard is convex. Adjust the truss rod in the neck accordingly. The closer the reading is to zero, the better the neck flatness. Digital models display readings numerically for greater clarity. For pointer-style models: First, set the large needle to zero. Before taking a measurement, note the position of the small needle (base). After measurement, subtract the base value from the final reading. Each full rotation of the large needle corresponds to 1mm (1 division) on the small dial. For example, if the large needle points to 9, it indicates 0.09mm; if it points to 90, it indicates 0.9mm. The small dial indicates millimeters, with each division equal to 1mm. If the small needle moves 2 divisions and the large needle points to 43, the total measurement is 2.43mm. Size: 30x4x1.1cm Material: Metal Color: Black Package Contents: 1 x Neck Curve Dial Meter Note: Light reflection and differences in display screens may cause slight variations in the color shown in images compared to the actual item. Measurement error allowance: +/- 1-3cm.