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String Action Gauge

5.0
  • 229 Reviews
  • Write a review

Inches

Item # 0670
In stock, ready to ship!

$18.95

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Metric

Item # 0670-M
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$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
  • 4.87 average rating from 229 reviews
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5.0

String Action Gage

By
(Customer's Reviews)


Works Great. Easy to read!

5.0

Very Handy Tool~~

By
(Customer's Reviews)


This gauge seems to have all the dimensions needed for an accurate, and quick set up..
I was surprised at how heavy, and well made this tool is, it's not going to bend or break...
Conversion chart on the back is also a great added feature!!

5.0

Simple and functional

By
(Customer's Reviews)


When facing a guitar overall evaluation, action is a key factor. At least for me, as the strings are the main instrument - human interface.
In my - little - experience trying to adjust the action was some kind of taboo. But not anymore with this awesome tool!!!
Simple, effective, and to the point.
No more action problems for me.
Thank you Stewmac!!!

5.0

Great must have tool

By
(Customer's Reviews)


If you do any setup on your guitars or basses this tool is a great time saver. My setups have never been so precise. Our guitars and basses much easier to play.

5.0

Great measuring guide

By
(Customer's Reviews)


Small but measures what I need it for. Nice and stiff. Should last a lifetime.

5.0

string height

By
(Customer's Reviews)


best damn tool

5.0

Precision

By
(Customer's Reviews)


I bought this one first, then bought a few of the cheaper versions out there for my other guys. They were nowhere near as precise, so we ended up throwing them in the trash and ordering more of the StewMacs.

4.0

Very good

By
(Customer's Reviews)


Very useful, although I would have preferred instead of the Metric / Decimal / Fraction table scales the same heights set high to low since there are places like the microphones of the bridge where it becomes difficult to locate the rule.

4.0

Handy tool

By
(Customer's Reviews)


Ordered the String action gauge. It's a handy tool for the work kit. The only complaint I have is shipping and handling added nearly 40% to the cost of the gauge which makes it quite expensive for a credit card sized tool

5.0

A must-have!

By
(Customer's Reviews)


This handy little tool makes measuring string action so easy it's silly! I've been trying to get by with a standard metal ruler from my local hardware store, but I'm so glad I bought this!

Showing 10 of 229 Read more reviews >>


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

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