Nice gifts: 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; Suitable for measuring all kinds of electric guitar, electric bass, electric box guitar. All the gauges are in different scales, you can use them to measure
your guitar according to your own requirements.

Understring Radius Gauges:
Size: 3.9 x 2.0 x 0.08 inch/ 7 x 6.5x 0.2 cm
Includes 7.25/ 9.5/ 10/ 12/ 14/ 15/ 16/ 17/ 20 inch radius
Application: Measured in radians, and radians to adjust the strings piano code, obtain accurate measurements of your instrument's fretboard radius, saddle radius, nut radius from either the upper or the bottom radius surface.

String Action Gauge Ruler:
Size: 8.9 x 5.1 cm/ 3.5 x 2 inch
Double sided, marked metric and imperial
Application: measure string height, bridge height, nut slot depth, bridge slot depth and pickup height

Fret rocker:
Size: 2.7 x 2.0 x 0.08 inch/ 10 x 5 x 0.2 cm
Application: Measures string height and locates high frets which enable it to check any fretted instrument and indicate uneven fret heights.
the fret rocker can span over 3 frets and can check if frets are on the same level

32 Blades feeler gauge
Measurement: The guitar feeler gauge measures from 0.0015 inch/ 0.038 mm to 0.035 inch/ 0.889 mm.
Application: The feeler gauge can be applied for guitar spacing chord distance measuring.

Guitar Neck Straight Edge:
Size: 16.45 * 1.2 * 1Inch (418mm * 30mm * 25mm)
Suitable: One side is for 24.75" (Gibson) scale guitars, and the other side is for 25.5" (Fender) scale guitars
flat ("notch-free") Straightedge lay on top of the frets to check their flatness and assist in fretwork.