Guitar Fretboard Radius Gauges – 3 mm Acrylic

Guitar fretboard radius gauges are essential tools for luthiers and enthusiasts who want to check their fretboard profiles accurately. Made from 3 mm thick acrylic, these gauges provide both rigidity and precision for your measurements. Laser-cut for accuracy, they let you check the fretboard radius before or after fretting with reliable results.

One of the main advantages of these gauges is how gentle they are to use. Unlike metal equivalents, they do not pose the same risk of scratching your fretboard. 

Each gauge is designed to reproduce standard concave radii accurately, helping you achieve professional results. Whether you are working on a vintage Fender guitar or a modern model, these guitar fretboard radius gauges help you achieve a consistent, comfortable profile. They are simple and intuitive to read, making it easier to adjust the fretboard radius without guesswork.

The set includes the most common radii: 7.25 inches, 9.5 inches, 10 inches, 12 inches, 14 inches, 17 inches and 20 inches. Each measurement corresponds to commonly used manufacturer standards, making it easier to work on instruments from different eras and brands. Sold in pairs, these guitar fretboard radius gauges provide a stable, dependable reference each time you use them.

Luthiers will find these tools useful for fretting, sanding and checking fretboards after finishing. Enthusiasts can also use them to maintain or restore their instruments to a professional standard. To complement them, our other neck-checking tools are available on our lutherie accessories page to help improve your setups.

To learn more about radius standards and measurement methods, you can consult the detailed guide on this website. These guitar fretboard radius gauges are durable, accurate and easy to handle. They quickly become an essential part of any lutherie workshop.