Close

String Action Gauge

5.0
  • 236 Reviews
  • Write a review

Inches

Item # 0670
In stock, ready to ship!

$18.95

+

Metric

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

$18.95

+
 
Total:
Qty:
Scroll to Top

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.

Customer Reviews

  • Excellent
  • Good
  • Average
  • Fair
  • Poor
Write a review
5.0
  • 4.87 average rating from 236 reviews
Sort by
Displaying 8 of 24
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
5.0

Easy to read, easy to use!

By
(Customer's Reviews)


Used it on all my guitars now, very easy to read and use. Love it!

5.0

Set-up made easy.

By
(Customer's Reviews)


Used to set-up my new Martin D-41. Now it plays as good as it looks and sounds. Love Stew-Mac.

5.0

gauge

By
(Customer's Reviews)


love this rule the only thing bad I could say cost to big!

5.0

Just what I needed.

By
(Customer's Reviews)


I brought this because I needed to set the action on all my guitars precisely the same and this has helped greatly. All guitar players should have one.

5.0

Very useful and precise

By
(Customer's Reviews)


I like this a lot. The different measuring systems (metric and Imperial) are terrific.

5.0

If you work on any Stringed Instrument ....This a must have !

By
(Customer's Reviews)


This is one of the greatest tools for working on any Stringed Instrument. I can understand why there are lot of favorable results of this tool. Anyone that works on instruments,this is a must have when sometimes, a simple machinists rule just will not do. It's compact and, built from very high quality steel. Thank you Stew Mac for making my passion a little easier.

5.0

New improved version...!

By
(Customer's Reviews)


I just got another couple of these(for set-up classes I run). The new ones (May '15) are twice the thickness of the older ones. Same accuracy, just chunkier..!

5.0

My most used guitar tool!

By
(Customer's Reviews)


I about this tool expecting to use it on the random setup. However, this tool has managed to allow me to do my own setups and get measurements for my playing style. Get it, learn how to use it, and play like a champ!

5.0

Why did I wait so long

By
(Customer's Reviews)


The string action gauge makes setup a snap, I had seen them on "Luthier setup tool reviews" but I made excuses oh I'll order one next week, I should have ordered it a year ago. Great job Stew-Mac, what an awesome measuring tool.

5.0

A must have, luthier or musician.

By
(Customer's Reviews)


Great idea, it acurately mesures and it converts. Bravo.

Displaying 8 of 24
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24


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

13MB File

View with Adobe Acrobat Reader 4.0 or higher.
Download Adobe Acrobat free from Adobe.