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Understring Radius Gauges

5.0
  • 172 Reviews
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Understring Radius Gauges Standard width, set of 9

Standard width, set of 9

Item # 0353
In stock, ready to ship!

$29.50

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Understring Radius Gauges Extra-wide, set of 9

Extra-wide, set of 9

Item # 0359
In stock, ready to ship!

$40.95

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Understring Radius Gauges

About This Item

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.

The set of 9 gauges includes:
7-1/4", 9-1/2", 10", 12", 14", 15", 16", 17" and 20" radii.

Standard width 6-string guitars and most 4-string basses—spans a string spread up to 2-5/8" (66.68mm).

Extra-wide 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.

Stainless steel.


Video

Trade Secrets!

Trade Secrets!

Fixing fret buzz: raising the saddles

A P-Bass with fret buzz: Dan Erlewine fixes his brother’s bass, and answers the question, “To get rid of this fret buzz, should I adjust the saddles or the truss rod?”

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5.0
  • 4.93 average rating from 172 reviews
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Displaying 3 of 18
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4.0

Handy gauges

By
(Customer's Reviews)


Worth the money for their convenience.

5.0

You can not do with out if accuracy is the goal

By
(Customer's Reviews)


This item keeps you on track with any stringed instrument you are working on. Helps keep playability on tract.

5.0

Gotta Have Gauges

By
(Customer's Reviews)


If you do bass setups, or any wide-neck guitar setup, these are mandatory instruments for your your tool cabinet.

5.0

No 7 string guitar or 5 string bass set up should be done with out them

By
(Customer's Reviews)


I have had the original shorter set for a couple years now and had pined for some that had enough stretch for my seven string guitar and five string bass. Using these I resurrected a budget seven string guitar, made my five string bass more than just a one trick pony, and turned my main seven string guitar into a monster.

5.0

Radius gauge

By
(Customer's Reviews)


I used them to determine my necks radius so I could get the right radius for my leveling block. Now I'll use them to set my bridge radius.

5.0

Understring radius gauges

By
(Customer's Reviews)


Well done, useful!

5.0

Indispensible for a proper bridge setup

By
(Customer's Reviews)


I bought these to help me set up my Fender Precision bass, which has a fingerboard radius of 9.5". First off, the only gripe I have is that these things don't seem to be available individually. I have two basses currently, and they both have the same radius so I don't see myself needing anything except the 9.5" one. I guess I'm supposed to feel prepared if I ever buy an instrument with other radii.
In any case, I've found that the 9.5" gauge makes setting the individual bridge barrel heights a breeze, and I feel assured that all four of my strings are exactly the same height off the frets.
They seem to be well-made, with no rough edges or burrs to interfere with contact with the wooden fingerboard.
I will be using these things for all future setups.

5.0

Great tool

By
(Customer's Reviews)


This is a must have tool, removes all the guessing required!

5.0

Great item to have.

By
(Customer's Reviews)


I have several different makes of guitar and this helped greatly in my set up. As once you know what radius your board is you can then use the tool to set your bridge if you have fender type saddles and bridge.

5.0

These fit under the strings, but won't fit inside some bridge plates.

By
(Customer's Reviews)


Nice item, but easily bent, so hang them up in a safe place. They will readily tell whether the bridge radius matches the finger board radius, & what is what. I don't buy into pickup pole piece height, because I use my own formula for that, and the same for final bridge & nut radius. I give the bass strings more room to vibrate on a low action guitar, and I tend to follow the Fender staggered pole piece concept for pickup pole heights, but these are still a great item to have on hand.

Displaying 3 of 18
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StewMac PDF Catalog, page 17 See Understring Radius Gauges
on page 17 of our StewMac Catalog PDF

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