Guitar Luthier's Tool Kit: This guitar luthier's tool kit includes 9pcs understring radius gauges and 1pcs double-sided string action ruler, comprehensively used for setting up your guitar, easy to carry and store
9 Understring Radius Gauges: Made of stainless steel, 9-piece set includes: 7.25-inch, 9.5-inch, 10-inch, 12-inch, 14-inch, 15-inch, 16-inch, 17-inch, and 20-inch radius, luthier's tools for setting up guitars and basses
String Action Ruler: Size 8.9 x 5.1 cm/3.5 x 2 inches, metric and imperial, double-sided etching printing, won't fade, accurately and clearly measure string height, bridge height, nut slot depth, bridge slot depth and pickup height
Usage Scope: A variety of electric guitars, electric basses, acoustic guitars, acoustic guitars, electric box guitar fretboards are measured in radius, as well as for adjusting the radius of the strings piano code
Great Gift: These guitar tools make great gifts for guitar technicians and guitarists to maintain and repair their instruments themselves