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 1 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

Testing string height

By
(Customer's Reviews)


Great product

5.0

String Gauge

By
(Customer's Reviews)


This is a good quality gauge,works well.

5.0

Great tool!

By
(Customer's Reviews)


Handy little tool to help with setting action on guitars. Very helpful for my strat!

5.0

Excellent Tool

By
(Customer's Reviews)


Very accurate! Makes measuring string height while adjusting nut, truss rod and/or bridge saddles a breeze in oppose to using traditional measuring methods. Has many other uses that I haven't had the chance to explore yet, which I'm sure will serve me well in future projects. A highly purpose specific utilitarian tool.
Definitely recommend!

5.0

Awesome

By
(Customer's Reviews)


This thing saves so much time. Easy to read to get your action right where you want it.

5.0

String Action Gauge

By
(Customer's Reviews)


Very useful, high quality with multiple applications.

5.0

GOOOD

By
(Customer's Reviews)


GOOOD

5.0

String Action Gage

By
(Customer's Reviews)


Works Great. Easy to read!

5.0

Very Handy Tool~~

By
(Customer's Reviews)


This gauge seems to have all the dimensions needed for an accurate, and quick set up..
I was surprised at how heavy, and well made this tool is, it's not going to bend or break...
Conversion chart on the back is also a great added feature!!

5.0

Simple and functional

By
(Customer's Reviews)


When facing a guitar overall evaluation, action is a key factor. At least for me, as the strings are the main instrument - human interface.
In my - little - experience trying to adjust the action was some kind of taboo. But not anymore with this awesome tool!!!
Simple, effective, and to the point.
No more action problems for me.
Thank you Stewmac!!!

Displaying 1 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.