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String Action Gauge

5.0
  • 205 Reviews
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Inches

Item # 0670
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$18.95

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Metric

Item # 0670-M
In stock, ready to ship!

$18.95

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String Action Gauge

About This Item

Fast, accurate measurements for setups.
Our String Action Gauge is a "Swiss Army Ruler" for setup adjustments on any stringed instrument.

This pocket-size stainless steel rule has become a luthier's favorite in busy shops. It's the best way yet to get vital measurements on acoustic and electric instruments.
• String height
• Bridge saddle height
• Saddle slot depth
• Fret slot depth (unbound fingerboards)
• Nut height
• Pickup polepiece height


No more "three-and-a-half-64ths or 3/32" plus one of those little lines." This gauge measures in ways that regular rulers can't.
—Dan Erlewine

Developed here at Stewart-MacDonald by Dan Erlewine and Don MacRostie, the gauge features a progressive string height scale: simply slide it across the frets and read the measurement under the string. It's faster to use than any ruler, and stays parallel to the fingerboard—much easier than trying to hold a ruler perpendicular to a rounded fret.

StewMac's String Action Gauge has two models (sold separately) for measuring in inches or millimeters. The string height markers are graduated from .010" to .140" on the inch model, and from 0.25mm to 3.50mm on the metric version.

The back of the gauge has a time-saving fractional/decimal/metric conversion chart.

The String Action Gauge is made of durable stainless steel with precision-etched markings, and fits right in your pocket.

Tip: You can use the gauge to set router depth, instead of a shop ruler. It sits solidly on your router base, with the scale right where you need it.


Video

Instructions

Product Instructions

Making a Nut, Step-by-Step

Dan Erlewine, of Stewart-MacDonald's R&D Team, walks you through making and installing a new nut.

Product Instructions

String Action Gauge

How to determine string action with the String Action Gauge.

Metric String Action Gauge

How to determine string action with the Metric String Action Gauge.

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5.0
  • 4.88 average rating from 205 reviews
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5.0

Thanks for having these in metric!

By
(Customer's Reviews)


I have both the inch version and the metric version of this great tool! Really great and easy to use!

5.0

A must have

By
(Customer's Reviews)


I was impressed with the String Action Gauge I recently purchased from Stewmac. In the past most of my setups have been done by eye and ear. This takes the guesswork out of it. I have done six setups since getting this handy tool. All were faster, easier, and better than ever before. I don't know how I got along without it.

5.0

String Action Gauge

By
(Customer's Reviews)


Great little tool. Very useful and serves multiple functions. However, you need good lighting and (for me) a magnifying lens or glasses to see some of the lines.

5.0

Perfect title for a perfect tool

By
(Customer's Reviews)


I consider myself fairly picky about the string action on my own guitars. Thanks for helping me put my money where my mouth is.

5.0

Handy as a Swiss Army Knife

By
(Customer's Reviews)


This tool is a must for setup work. I got this handy gauge about a year ago. I wouldn't try to setup a guitar with out one of these little gems. Worth every penny.

5.0

String Action Gauge

By
(Customer's Reviews)


with this tool I can make quick and accurate measurements allowing me to make more accurate setups

4.0

A great tool to have in the box

By
(Customer's Reviews)


This is a great tool to have around. I have several guitars that all feel a little different, a good thing in some cases but in others not so much. Forgive me for wanting both my SG's to feel alike. Enter the string action gauge. The slight different in string height is no longer an issue.

4.0

multi-purpose guage

By
(Customer's Reviews)


A high quality, practical rule. Use the horizontal string guide to hone in on relative height, and the 1/64" for more accuracy.

5.0

Great Measure

By
(Customer's Reviews)


I like so many others was using a six inch steel rule. Now that I have the String Action Gauge set up of stringed instruments is much easier.

5.0

Great Gadget

By
(Customer's Reviews)


easy to use and repeatable !

Displaying 6 of 21
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StewMac PDF Catalog, page 16 See String Action Gauge
on page 16 of our StewMac Catalog PDF

12MB File

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