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String Action Gauge

5.0
  • 290 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 290 reviews
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Displaying 2 of 29
5.0

Great

By

Verified Buyer


Great tool
Fast delivery

5.0

Super fast set ups

By

Verified Buyer


No rocking on the fret, you can put the marks right where you need them. Only the fastest I've done a set up on my collection of guitars basses.

5.0

Helpful

By

Verified Buyer


This is a real help fur set ups. It makes it easy to see string heights above frets.

5.0

High quality tool.

By

Verified Buyer


I can't think of a single complaint about this product.
I needed to shape a saddle for a resonator and this one rectangular piece of metal makes that fairly simple and speeds up the process significantly.
It's everything I needed for the job and more.

5.0

Well made tool

By

Verified Buyer


Previously I bought a cheaper version of this tool on the web. It didn't compare well to the quality of the StewMac version. It was half the thickness and the edges were rough (looked like they cut it out using a sheet metal sheer). The StewMac version has machined edges that are very straight and smooth. A very nice measuring tool that will last forever.

5.0

Needed this badly.

By

Verified Buyer


Perfect! Guessing was getting me in trouble.??

5.0

Excellent tool for everyone!

By

Verified Buyer


Great tool! Are you luthier or not it's the must have tool.

4.0

Useful tool

By

Verified Buyer


I can see how this would be a useful tool to have in the tool chest. Since I tend to want my strings as close as can be to the neck, this really just gives me a basis to know what the string height is.

5.0

Excellent tool that's indispensable for any guitarist...

By

Verified Buyer


I'm not a luthier, but as an intermediate "hobbiest," I'm always tinkering or adjusting string action in response to alternate tuning demands, changing string gauges, etc. This tool is calibrated in all the useful measurement indices to help determine appropriate set-ups, action, etc. My only complaint is that it's obviously over-priced, but hey... try to find an alternative!

5.0

Fabulous, Heavy Duty, Not a Toy, Well Made, Perfect Required Tool

By

Verified Buyer


I bought this sight unseen and must say it is perfect. I am completely happy with it. I actually keep it in my wallet so I can use it whenever I order dinner or buy hardware... anytime somebody recognizes me and wants me to give them an offer on dialing in their guitar.

Displaying 2 of 29


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