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Home : Tools : Measuring tools : Nut Slotting Gauge

Nut Slotting Gauge

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A revolution in guitar setup! Precisely measures string heights, so you can cut accurate nut slots for consistent playability.

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Nut Slotting Gauge

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  Item# Description In stock Price Quantity
2003 For guitar and most instruments Yes

2006 For bass Yes

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Related items

Neck Relief Gauge and Nut Slotting Gauge Set

String Lifter

Double-edge Nut Files

String Action Gauge

String Spacing Rule

Neck Relief Gauge and Nut Slotting Gauge Set
String Lifter
Double-edge Nut Files
String Action Gauge
String Spacing Rule

This device that will revolutionize the way you set up a guitar.
The Nut Slotting Gauge quickly and precisely measures string heights over the first fret. When filing nut slot depths, you see your results more accurately than ever before. No more guesswork or "eyeballing" the string heights, and no more searching for elusive combinations of feeler gauges. You can custom-tailor the playability with consistent, repeatable results.

At last! A precision tool for establishing string heights!

The Nut Slotting Gauge was designed by Don MacRostie here in our R & D shop. It features an easy to read dial indicator with adjustable zero point, and it's super accurate to .001". The machined brass base fits over the strings to rest on the fingerboard, and it works with most acoustic and electric guitars, mandolins and banjos. A larger brass base is machined to fit bass string spacings. Both have gently arched bottoms to follow most any fretboard radius. Instructions are included.

The Nut Slotting Gauge is included in this money-saving set:
Nut Slotting Gauge and Neck Relief Gauge Set

Putting the new Nut Slotting Gauge to work on a "burn victim" guitar
A new nut on a "burn victim" guitar
Putting the new Nut Slotting Gauge to work on a "burn victim" guitar Read more

In this issue:
Dan Erlewine shows a before and after of a 1958 Gibson that’s (barely) survived a house fire. It needs a new nut, and he’s using the Nut Slotting Gauge to get it right the first time.

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 Ratings and reviews
Nut Slotting Gauge
Nut Slotting Gauge
4.5 out of 5 stars
Based on 69 ratings Write a Review
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Displaying 61 – 69 < 1  ...  5  6  7
5 1-29-2011

As a guitar tech for a local music store I find the nut slot gauge to be a tool I can't live without. It makes for fast and accurate work and will always have one in my tool box.

Jleo67  Cobden, IL
5 1-17-2011
Nut Slotting Gauge

This is an excellent tool, worth the money if you have several instruments.
I have checked and adjusted about a dozen guitars since receiving the gauge. Drop the gauge on and in a second you can see why its always been tough to play those bar chords! I caution people to be careful though, those thinners strings drop quickly if you are heavy handed with the file! I overcooked a couple of fine strings because I didn't have the right width file. I was measuring and filing not realizing I was filing a narrow groove and the string hung up and then suddenly drop (whoops). Have ordered more files from Stew Mac, so this won’t happen again! Its a great tool, my only suggestion for improvement would be a dial that was calibrated backwards as you are always pressing down and therefore deducting from the starting datum point.

Pete Davis  Brisbane, Australia Read my reviews (4)
5 12-22-2010
The most precise way to adjust strings

I've adjusted strings with feeler gauges and guesswork before but this takes all the guesswork out of it. It rests on the string. You zero it. You press down and you have the distance. It couldn't be easier. They do seem to have designed it to work the other way around, which would mean you'd have to zero it while you hold down the string and the let up to read it, but it's not that hard to read backwards and easier to set to zero while not having to hold it down as well.

Michael Bush  Greenwood, NE Read my reviews (5)
5 12-10-2010
Daily use tool

Just an excellent idea and execution. Simple to use and makes me faster and more accurate, everything a tool ought to be! Thanks guys.

Jacob Hawkins  Columbus, OH Read my reviews (5)
5 11-08-2010
Love it

I had always struggled with setting the action at the nut. After using this tool the first time, I kicked myself for not getting it sooner. Makes the job faster, easier and gets rid of the guesswork.

John Cross  Devon, Alberta Read my reviews (3)
4 8-18-2010
Nut Slotting Gauge

An excellent idea, but the dial on mine does not reliably come to rest at the same place. As a result, I take many measurements and I assume the average is within .005" of the actual height. If the dial were more reliable, it would be great.

Bill Crocca  Rochester, NY, USA
5 8-13-2010
Best Action Yet

I used the nut slotting gauge on my latest guitar Project. There is no guessing or messing around with feeler gauges trying to get the action at the nut just right, you know within seconds exactly the height of the string over the first fret. I would not do another nut without it.

Eric Cornett  Vilas NC 28692 Read my reviews (4)
Customer supplied image for review
5 5-23-2010
Great tool!

Thanks for developing such a great tool for adjusting string height at the nut. Makes the job quick, accurate and easy! Because the dial actually measures on a countdown rather than count up basis, I zero the dial while the string is pressed to the fret so during the adjustment process, I just rest it on the string (without depressing) to see the height without having to depress the string or do the subtraction to determine the measurement. Thanks again. Jim

Jim Dodds  Ottawa, Canada
5 5-19-2010
Good grief!!! It's the coolest thing ever!!!

Fantastic ... small, simple, accurate. Like a little piece of functional art. I want a second one for my car dashboard. Many thanks to Don MacRostie.

Daniel Carbone  Arlington VA Read my reviews (3)
Displaying 61 – 69 < 1  ...  5  6  7 /\ Top of Reviews

Shown on page 18 of our latest catalog.
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