Get both inch and millimeter measurements from same ruler
Can be used on any stringed instrument.
One of the most important tools you can have when it comes to setting up ...
Reviews
4.7
6 ratings
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String action ruler
Very nice and easy to use
A very useful item for the tool box
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David · January 20, 2026
G
Excellent tool. Very useful.
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George · September 18, 2025
Must have setup tool at a great price!
Has all of the critical dimensions needed for a solid guitar setup at a great prince, plus it works great as a fret rocker to check for high frets! Might add another to my next order just to have on hand! Thanks MGB!
