C.F. Martin & Co STRING ACTION GAUGE
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Information
Information
Manufacturer Information
Martin Strings
https://www.martinguitar.com
customerservice@martinguitar.com
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Algam SAS
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A simple tool for a better setup and more enjoyable guitar playing
The Martin Strings action ruler is an essential accessory to quickly check your setup and achieve consistency during adjustments. By measuring the action at the 12th fret, you get a reliable reference to adjust playing comfort, reduce left-hand fatigue, and avoid common issues (strings too high, feeling of stiffness, or fret buzz if the action is too low). The indicated values provide a clear starting point, with readings for the bass side and the treble side. Depending on your attack, string gauge, and style (fingerstyle, strumming, pick playing), you can lower the action slightly if no buzzing occurs.
Technical specifications
| Category | Tools | Use | fretboard, string, Bass, guitar |
| Type | tooling | ||
| Brand | Martin Strings | Recommended measurement point | action at the 12th fret |
| Compatibility | all stringed instruments | Note | suggested action can be lower if no buzzing is present |
| Units | standard and metric measurements | Suggested settings at the 12th fret (bass side / treble side) | acoustic 2.4 mm (3/32 in) / 1.6 mm (2/32 in) |
Questions frequently asked
Q: At which fret should the guitar action be measured?
A: The recommended measurement is at the 12th fret to check the string height during setup.
Q: What units are displayed on the Martin Strings action ruler?
A: Both standard and metric graduations are present to read measurements in inches and millimeters.
Q: What action is recommended for an acoustic guitar at the 12th fret?
A: On the bass side, the suggested reference is 2.4 mm, or 3/32 in. On the treble side, it is 1.6 mm, or 2/32 in. Slightly lower action can be considered if no buzzing occurs.
Q: Is the Martin action ruler suitable for all stringed instruments?
A: This ruler is stated to be compatible with all stringed instruments for checking string height.
Q: Can the action be lowered if the strings do not buzz?
A: Depending on the attack, string gauge, and playing style, action lower than the suggested values can be used if no buzzing appears.
