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String Action Gauge

5.0
  • 313 Reviews
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Inches

Item # 0670
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$21.74

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Metric

Item # 0670-M
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$21.74

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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
  • 4.89 average rating from 313 reviews
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5.0

Beautifully made and heavy duty!

By

Verified Buyer


I purchased the string action gauge recently and found it to be solidly built and really easy to read. I also purchased the tech wrench set and the multi spanner which worked perfectly and had an excellent finish. These tools are built by guys with a lifetime of experience as luthiers and should be in every guitar players tool set to keep their guitars in perfect setup.

5.0

The one all copies must submit to

By

Verified Buyer


This little Gauge has seen alot of use, and the lettering hasn't rubbed off, the gauge is straight as the day I got it, and has improved my turnaround by giving me a 1 for many tool in one tough little package

5.0

Terrific Tool !!

By

Verified Buyer


A little pricey, but definitely worth it. Makes guitar set-up a breeze. Good Quality.

5.0

Great for home work

By

Verified Buyer


Quaility tools at great prices little slow on delivery

5.0

Perfect

By

Verified Buyer


So simple, so needed, so required. Really, what can I say. Got the nut set, got the bridge radius set, need to set string height. What else could be easier than this gauge?! Seriously, if you do not own one, buy one now. Way too easy.

5.0

Works well. Much easier than tryiung to use a rule from the hardware store.

By

Verified Buyer


I bought this to check my guitars. For me it is worth the money as it makes it very easy.

5.0

Best tool ever!

By

Verified Buyer


This is indeed one of the best tools you can use to determine the best possible action on your guitar as well as adjust pickup height, etc.

5.0

Perfect

By

Verified Buyer


Very accurate, durable & handy!

5.0

Good quality

By

Verified Buyer


Good stuff

5.0

Precision Measuring Tool

By

Verified Buyer


This is another must-have tool enabling you to properly setup a guitar's action. It measures string heights in thousandths and has SAE measurements in 32nds and 64ths for string height, bridge saddle height, saddle slot depth, fret slot depth, nut height, pickup polepiece height, etc. The front side of the tool has scale markings on three of the four edges allowing for different approaches to making the measurement. The back side of the tool has a handy conversion chart from 1/64th of an inch up to 1 inch in 1/64th of an inch increments. The table converts to decimal inches (to four places) and decimal millimeters (to two places). This is one fine precision measuring tool!

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