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String Action and Measurement Gauge
by Elmer Guitar


10+ In Stock

Dispatched within 1 working day
Ships to 103 countries worldwide

Metric (mm) Imperial (inch)


The String Action Gauge has a variety of ruler markings for taking a variety of measurements across the guitar indispensable for set up work.

Along the bottom edge is a progressive scale that goes up in 0.25 mm increments up to 3.5 mm (metric version) or 0.01" increments up to 0.14" (imperial version) for easily reading and setting string action height, the ruler will span multiple frets ensuring it stays flat and perpendicular to the fret, much easier to use than a traditional ruler. Along 1 narrow end is a depth gauge for for checking saddle, nut and fret slot depths as well as pickup, nut and saddle heights. Along the other narrow end is right hand and left hand ruler measuring inwards towards the centre of the ruler for checking string and pole piece spacing, and there is a traditional ruler along the top long edge.


Metric and imperial version available
Progressive 0.25 mm increments up to 3.5 mm (metric) or 0.01" increments up to 0.14" (imperial)
Depth gauge up to 15mm (0.5 mm increments) or 0.5" (0.02" inch increments)
Right and left hand scales in 0.5 mm increments or 64ths inch
Standard 75 mm or 3" ruler on top edge
Conversion chart on the back
Stainless steel with accurately etched marks

Tech specs

Manufacturer Part Number EG001-Inch

Customer reviews

3.0 out of 5

Joe Z. Verified Purchase

Small print

The String Action Gauge could be slightly bigger and the print could also be bigger AND laser etched so as it won't wear off.
Delivery was fast.
Thank you

Reviewed ago