Hosco Japan Stainless Steel Fingerboard Radius Gauge + String Height Check

The Hosco original fingerboard gauge is a ruler shaped tool to determine the radius of your fingerboard. You can measure the 6 most common fingerboard radii: 7,25" , 9,5", 10", 12", 14", 16".
This also has a string height measuring function. Hieght measurement is in increments of 0.2 mm until 3.0 mm.