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How do you know when you need an adjustment and how do you measure it accurately? When you play guitar or bass from time to time, notice that your instrument isn’t playing its best.

This Pocket size tools fit your needs: Small enough to fit in your guitar case and strong enough to last forever this is the perfect measurer to check your guitars action, find out if you need an adjustment, and then measure that adjustment with precision

It is real helpful if you change string gauge, requiring multiple changes to your bridge and pickup height.


Material: Stainless steel
Application: electric guitar, bass and acoustic guitar
Unit: mm/ in
Scale for string height: 0.01-0.14in / 0.25-3.50mm
Scale for bridge saddle slot depth: 0-0.875in / 0-20mm
Scale for nuts saddles and polepieces: 0-0.75in / 0-20mm
Ruler size: 8.9 * 5.1cm / 3.5 * 2in (length * width)
Ruler weight: 23g / 0.8oz

Package includes:

1 x String Action Ruler for String Instrument
1 x Instruction paper cardStainless Steel, Durable, Beautiful and Widely Used
Pocket Sized, Convenient for Taking to Everywhere You Like
Double sided, Imperial (inches) One Side, Metric (millimetres) On The Other. With Conversion Chart of String Action at 12th Fret Printed.
Use To Measure: Nut / String / Bridge / Pickup Pole Piece / Saddle Height Plus Saddle Slot/ Fret Slot Depths
Perfect Accurate Action Measurements for String Instruments Such as Guitar, Bass, Mandolin, Banjo etc