Lahdrhab 1Set Guitar Luthier Measuring Tool Kit Guitar String Ruler Lower String Radius Gauge Guitar Accessories

9 understring radius gauge: stainless steel material, set of 9 including: 7.25 inch, 9.5 inch, 10 inch, 12 inch, 14 inch, 15 inch, 16 inch, 17 inch and 20 inch radius, luthier tools for Guitar and Bass Setup Studry material: the fret rocker and notched straight edge are made of stainless steel, sturdy enough for your long-term use and not easy to scratch your guitars Usage: these guitar luthier tools are good gifts to guitar technicians and guitarists to maintain and repair their instrument themselves in a short time, reducing buzzing; Good tools for electric guitar, acoustic guitar, bass, banjo and folk guitar, etc.