Radius Gauges

  • 28 Reviews
  • Write a review

Durable stainless steel!
Quickly find the curvature of a fingerboard or bridge with these sets of radius gauges.

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Radius Gauges Original (smooth), set of 2

Original (smooth), set of 2

Item # 5432
In stock, ready to ship!


Radius Gauges Notched, set of 4

Notched, set of 4

Item # 5433
In stock, ready to ship!


Radius Gauges, Complete set of 6

Radius Gauges, Complete set of 6

Item # 5434
In stock, ready to ship!

$70.20 $65.99

Total: $0.00
Quantity: 20


Radius gauges for guitar work

Dan Erlewine demos the three kinds of radius gauges for setup and fretwork.

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Durable stainless steel!
Quickly find the curvature of a fingerboard or bridge with these sets of radius gauges.

Use them frequently to check your work as you smooth or shape a fingerboard or frets: a quick visual check keeps you from accidentally altering the shape — a mistake that's easy to make and hard to fix.

Sold individually or SAVE when you buy the set of all three radius gauges.

Guitars commonly have a "compound radius," meaning the curvature changes from the nut to the end of the fingerboard. "Eyeballing" this subtle change is next to impossible; that's why a set of radius gauges is essential. Also use them for profiling an acoustic bridge saddle and setting the string heights on an electric guitar bridge. Our gauges have precision laser-cut 7-1/4", 9-1/2", 10", 12", 14", 15", 16" and 20" radii. They're made of stainless steel for durability in the busy shop, and work for string spreads and fingerboards up to 3-1/4" (82.55mm) wide.

Use them in combination with our Radiused Leveling Blocks, for professional results.

New notched gauges work with strings on! This new version is handy when you want to check a fingerboard without taking the strings off. The set includes closely-spaced string notches for use near the nut, and wider spacing for use near the body (great for compound radius fingerboards). This set includes the same radii as our regular set.

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Ratings & Reviews

Radius Gauges

  • Based on 28 Reviews
Displaying 2 of 3 1 2 3
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A no brainer!!

By Gary at SharpenYourAxxe from Oakton Virginia
(Customer's Reviews) Wednesday, July 25, 2012

Great tool!. Just follow the instructions,lol. Just kidding there. I recently started doing fret work and these radius guages make it so easy to find out what the radius is on the guitar you are working on.

A must-have

By Leo M Whitebird from Mpls Mnn
(Customer's Reviews) Friday, March 23, 2012

useful in so many ways- I ended up with 2 sets and use one as radiused scrapers

very useful

By pedro1689 from calama, chile
(Customer's Reviews) Saturday, January 28, 2012

a very useful tool to determine the diameters quickly

Great product...again!

By AJ from Brisbane Australia
(Customer's Reviews) Tuesday, September 20, 2011

An invaluable tool for my in-store repair work, big time saver and my customers feedback totally validates the investment... Cheers guys!

Must have

By Mike T. from North Carolina, USA
(Customer's Reviews) Thursday, September 15, 2011

These are quality gauges, should last a lifetime.

Must Have

By Middleton Guitars from Southern California
(Customer's Reviews) Tuesday, August 30, 2011

Much more precise than my home-made ones. These metal ones will last a lifetime. The notched ones are extremely helpful for checking the radius while the strings are on the guitar.

some basic equipment

By Ralph from Wolfegg, Germany
(Customer's Reviews) Wednesday, June 08, 2011

Such things are necessary for a good adjustment of a Guitar. In this case, quality is fine!

Radius Gauges

By Gilton ss from Brazil
(Customer's Reviews) Friday, May 27, 2011

useful tool

Raduis gauges.

By Pete Stamp from Sussex, England.
(Customer's Reviews) Monday, May 23, 2011

What can you say about radius gauges?
Much more accurate than anything I could make by hand, well made and clearly marked, saves a lot of time, all in all a good buy.

Good tool! 

By M. Fermont from The Netherlands
(Customer's Reviews) Wednesday, April 27, 2011

Can't miss it in my guitar-toolbox.

Displaying 2 of 3
1 2 3

Shown on page 17 of our latest catalog.