Fretboard Radius Gauge nickel WSR20For measuring the common fretboard radiuses 7.25", 9.5", 10", 12", 14" and 16". The clou is a tiny clever scale that helps you to find out the exact string action in 2/10 mm steps.€29.57 Includes 20% VATIn stockAdd to cartProduct OverviewSpecificationManufacturerGöldoCategoryLuthier Tools and SuppliesFret files and cuttersSKUWSR20In stockAdd to cartH-RG2 Fingerboard Radius Gauge€18.42 Includes 20% VAT