Feature:1. The rangefinder is made of high-quality stainless steel, which is anti-rust and corrosion-resistant, and can be used for a long time2. The rangefinder can make necessary measurements and adjustments to stringed instruments3. This guitar repair kit can be used to change strings, set pitch, adjust movement or check string height4. A full set of accessories, suitable for cleaning column instrument5. Suitable for electric guitar, bass, banjo, mandolin and various stringed instrumentsSpecification:Item Type: Guitar Tool Set Used for: GuitarMaterial: Metal + polished stoneProduct Size:Polishing Stone: Approx. 10 x 1.2 x 1.2cm / 3.9 x 0.5 x 0.5in Gasket: Approx. 7.8 x 2.2cm / 3.1 x 0.9in /1.3 x 0.1cm / 0.5 x 0in 3 in 1 Length: Approx. 12cm / 4.7inRadial Ruler Specifications: 7.25, 9.5, 10, 12, 14, 15, 16, 17, 20 spacing rulerScope of Application: 0.04-0.88mmNumber of Blades: 32PcsMetric Dimensions (mm): 0.04, 0.05, 0.06, 0.08, 0.10, 0.13, 0.15, 0.18, 0.20, 0.23, 0.25, 0.25, 0.28, 0.30, 0.33, 0.35, 0.38, 0.40, 0.43, 0.45, 0.48, 0.50, 0.53, 0.55, 0.58, 0.60, 0.63, 0.65, 0.70, 0.75, 0.80, 0.88Inch Size: 0.0015,0.002,0.0025,0.003,0.004,0.005,0.006,0.07,0.008,0.009,0.010,0.010,0.011,0.012,0.013,0.014,0.015,0.016,0.017,0.018,0.019,0.020,0.021,0.022 , 0.023, 0.024, 0.025, 0.026, 0.028, 0.030, 0.032, 0.035Package List:9 x Radius Gauge1 x Sander1 x 3 in 1 Tool1 x Measurement Ruler2 x Gasket1 x Spacing RulerNote:There is some anti-rust oil on the feeler gauge to prevent rust, please don’t worry