Ruler for measuring string height and string spacing
Optimum adjustment of string height and string spacing
Ruler with metric and US-American system
Recommended use at the 12th fret
Martin String Action Gauge for all stringed instruments
The Martin String Action Gauge is a precise measuring tool for the exact adjustment of string height and string spacing. It helps to optimally adjust the instrument and to specifically improve playability and sound development.
The clearly designed ruler has a scale in both the metric and US-American system and therefore enables quick and reliable reading. This allows settings to be made reproducibly and according to individual preferences or factory recommendations.
The recommended use at the 12th fret allows a practical assessment of the string action and ensures consistent results.