Wide version Understring Radius Gauge covers string spreads up to 3-3/4″ (95.25mm)—enough for 4-string, 5-string, and many 6-string basses. They’ll also handle 7-string and 8-string guitars.
Fast, accurate bridge saddle adjustment!
These handy set of 9 gauges comes in all popular fingerboard radii. (7¼”, 9½”, 10″, 12″, 14″, 15″, 16″, 17″ and 20″).
They can be used to accurately measure fret board radius, saddle radius nut radius from either the top or the bottom radius surface.
Precision laser-cut from 0.056” stainless steel with each being etched with the radius.
3-3/4″” (95.25mm) wide.
