[6 in 1 Guitar Tools] Guitar luthier tool set includes: 9 Understring Radius Gauge, 32 Blades Steel Feeler Gauge Dual, 1 String Action Gauge Ruler, 2 Fingerboard Guards and 1 Grinding Stone in a velvet bag, convenient to carry and store
[32 Blades Feeler Gauge] Steel Feeler Gauge measuring range: 0.0015 inch/ 0.04 mm to 0.035 inch/ 0.88 mm, light oil covered to prevent rust and stick, thumb screw is easy to use for blade removal and protection
[9 Understring Radius Gauge] Stainless steel material, set of 9 including: 7.25", 9.5", 10", 12", 14", 15", 16", 17" and 20" radius, luthier tools for Guitar and Bass Setup
[String Action Ruler] Size 8.9*5.1cm, metric & imperial, etch printing on double sides, will not fade, accurate and clear to measure string height, bridge height, nut slot depth, bridge slot depth and pickup height
[Fingerboard Guard with Grinding Stone] Prevents scratching or damaging to guitar or bass fretboard when filing and polishing frets, 10cm x 1.1cm Grinding stone for polishing saddle, nut and frets