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Fast, accurate bridge saddle adjustment.
Each of these unique gauges has an accurately radiused arc on both the top and bottom surfaces, and is shaped to fit easily under the strings.
Use the bottom curvature to determine your fretboard radius, and the matching top curvature becomes a reference for setting string saddle heights for best playability.
Low profile fits tight spots. The slim shape of our understring gauges allow you to read the fretboard radius even with the strings on! This is also handy for matching pickup polepiece heights to the arc of the strings. And setting bridge saddles is easier than ever.
Standard width 6-string guitars and most 4-string basses—spans a string spread up to 2-5/8" (66.68mm).
The set of 9 gauges includes:
7-1/4", 9-1/2", 10", 12", 14", 15", 16", 17" and 20" radii.
steel.
Josh
Reviewed in the United States on March 26, 2025
Very simple to use, they work the way they're supposed to & helped with fine tuning the radius of the strings to match radius of the fretboard for playability, made of really good material, I recommend this product.
Customer
Reviewed in the United States on March 7, 2024
It is stewmac so you know it is made with precision and good quality. A must have tool if you have fixed or hardtail bridges. And because I bought it through Amazon did not have to pay the high stewmac shipping cost. With much faster shipping through Amazon as well.
Client d'
Reviewed in France on November 5, 2024
Rien à dire, c'est du bon matos
Mark
Reviewed in the United States on November 1, 2024
Great, for the purpose it was buy, Works really well.
Carisa
Reviewed in the United States on October 4, 2024
We all know these tools from StewMac are expensive, but it's for good reason. These are all you'll need for radius gauges. They are accurate on top and bottom side. Easy to use.
roger a brown jr
Reviewed in the United States on January 22, 2024
Well Stewmac is the best. I like getting on Amazon to keep shipping down. Learning to set up my own guitar and these and the videos are great.
Walking Eagle
Reviewed in the United States on January 10, 2024
1. They seem expensive for what you are getting.2. They are highly accurate - probably the best you will find anywhere.2a. Buy a couple of the cheaper versions and these, and you will find the others are a waste of money.3. If you have any issues, StewMac will take care of you. It is part of the higher entry cost.If these are tools you plan to use more than one time, you won't be disappointed with what you get. Highly recommended.
Alex
Reviewed in the United States on July 19, 2023
Smooth quality guages. Should last forever. Worth it!
Rick Belt
Reviewed in the United States on November 12, 2023
Much better quality than the cheap junk elsewhere. Higher priced than others, but worth the extra cost. I’d bought one of those mega 17-piece kits (assorted gauges, scales, notched straight edge etc.) priced under $30, and the under string radius gauges were so thick, they would not fit between the strings and body at bridge. These StewMac are narrower and fit where they need to get to. Buy there.
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