Characteristic
How to use H-RG2

Radius gauge

For 7-1/4″(184mm)

Fret crown height gauging (mm/10)

String action gauging
ex.String action : 2.5mm

Fret crown height (high fret)
ex. 1+10=11, 11/10=1.1mm

Fret crown height (low fret)
ex. 0+10=10, 10/10=1.0mm