Standard Stainless Steel String Gap Ruler Set International 32 Pieces Measurement Gauge Guitar Luthier Tool Measure the height between frets , strings, height between the pickup , strings and width of the upper pillow groove Feeler Gauge Set can measure the of fret and fret board, the height of pickup and strings, nut slot depth, uneven fret board, etc. Description Blade Feeler Thickness Gauge. The durable Guitar Gauge Set Fret is made of stainless steel material and fine workmanship, which is high rust resistance, high strength and durable. Features - Color: silver. - Material: Stainless Steel - Size: 9.9x1.3x2cm The Feeler Gauge Set is compact and lightweight, easy for carrying and convenient for use. - Marks: 0.0015 - 0.038mm, 0.002 - 0.051mm. 0.025 - 0.063mm, 0.003 - 0.076mm, 0.004 - 0.102mm. 0.005 - 0.127mm, 0.006 - 0.152mm, 0.007 - 0.178mm, 0.008 - 0.203mm. 0.009 - 0.229mm, 0.010 - 0.254mm . 0.011 - 0.279mm, 0.012 - 0.305mm, 0.013 - 0.330mm, 0.014 - 0.356mm .0.015 - 0.381mm, 0.016 - 0.406mm, 0.017 - 0.432mm. 0.018 - 0.457mm, 0.019 - 0.483mm, 0.020 - 0.508mm. 0.021 - 0.533mm, 0.022 - 0.559mm, 0.023- 0.584mm, 0.024 - 0.610mm. 0.025 - 0.635mm. 0.026 - 0.660mm, 0.028 - 0.711mm, 0.030 - 0.762mm. 0.032 - 0.813mm, 0.035" - 0.889mm Package Including 1 set x String Ruler EXCEART Exceart String guitar adjustment tool feeler gauge feeler blade gauge dual marked gap measurement tool v guitar gauge luthier guitar tools automotive tools Guitar Luthier Tool meter ruler