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String Action Gauge

5.0
  • 276 Reviews
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Inches

Item # 0670
In stock, ready to ship!

$19.90

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Metric

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

$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
  • 4.87 average rating from 276 reviews
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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.

5.0

String Action Gauge (Metric) MN, Derby, UK

By

Verified Buyer


I originally purchased one of these action gauges in the UK.

However when it arrived, I found it to be between 3 & 3.5mm out of tolerance. So purchased one of the metric versions from Stew Mac, similar price as the duff one in the UK, but far more superior in feel, quality and very accurate.

It was expensive to have shipped and extra customs duty to pay, but well worth it though when the equipment is of such excellent quality.

Thank you.

If your thinking of getting one these? Look no further...

5.0

String Action Gauge is Great!

By

Verified Buyer


Best setup comes after adjusting string height at the first fret. Action at 12th fret. This tool is superior to using a steel rule. Best realization for a good setup: neck relief seems best when clearance is about half the diameter of your thinnest string on high side. Any additional relief only raises the action unnecessarily. Doing a setup in increments reveals this to be true. A good value and necessary item when doing your own setup! Saves money when you do your own work! Highly recommended!

5.0

Fast, Efficient Sales & Customer Service

By

Verified Buyer


Stew-Mac is the first place I looked to build up my tool bag. Solid products, competitive prices, and fast shipping; it's what you want and that's what you get !

5.0

A great shopping experience... everytime!!!

By

Verified Buyer


I am looking for ward to using my new string gauge. It is going to make setting up guitars so much quicker and easier.

Showing 10 of 276 Read more reviews >>


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