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String Action Gauge

5.0
  • 289 Reviews
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Inches

Item # 0670
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$19.90

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Metric

Item # 0670-M
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$19.90

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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 289 reviews
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Displaying 4 of 29
4.0

Puts many features into 1 nice little card

By

Verified Buyer


Perfect for checking action, relief, nut action among many others. I was on the fence buying this since I already had a ruler but it's a necessity now for setups and measuring.

5.0

Action gauge

By

Verified Buyer


Makes setting and adjusting action quicker and more accurate

2.0

so-so quality

By

Verified Buyer


It's not even chromed or polished.. You have to get a good light to see the measurement. Just a piece of steel with marks on it. Looks cheap. Feels cheap. Smells oil.

5.0

Good quality

By

Verified Buyer


The indented marks, makes it an accurate tool

5.0

String Action Gauge

By

Verified Buyer


Perfect size and easy to read

5.0

String Action Gauge

By

Verified Buyer


I see many uses for this tool

5.0

Solid

By

Verified Buyer


Solid, well-made, precise and accurate.

5.0

Review of String Action Guage

By

Verified Buyer


Should be a useful tool. I tried it on my Martin HD-35 and found the truss rod too tight and made adjustments. I see many uses for this tool on my 7 other guitars as well as those of my grandson.

5.0

String action Gauge

By

Verified Buyer


Most versatile "all-in-one" tool I've ever purchased! This tool will never lie idle on a shelf somewhere.

5.0

Excellent

By

Verified Buyer


Nothing but good things to say about Stew Mac!

Displaying 4 of 29


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