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3-in-1 Precision Ruler for Acoustic and Electric Guitars

  • For quickly checking the flatness of the fingerboard and the flatness of the frets
  • Helpful when adjusting the truss rod
  • The custom notch design is suitable for most electric and acoustic guitars
  • Suitable for scales between 24.625" to 25" and 25.34" to 25.625" and up to 22 frets
  • Unique triangular, three-walled design
  • Bend-free and easy to handle thanks to an innovative profile
  • Made of high-quality 6035-T5 aluminium
  • Accuracy tolerance of +/- 0,00125"/ft.
  • Extremely durable and abrasion-resistant blue anodised surface
  • Convenient hanging hole
  • Dimensions (L x W x H) 447 x 25.4 x 25.4 mm
  • Available since July 2023
  • Item number 567056
  • Sales Unit 1 piece(s)
61
All prices incl. VAT
In stock
1

30 Customer ratings

4.7 / 5

quality

17 Reviews

N
A good product but pray for not having any issue with thomann
NicoFG 02.09.2024
The product is great but be careful of thomann, customer service lies all the time (when is the product gonna be in stock, a “manager will contact you back” which never happened), they live you for 2 months without any answer, do not respect the customer and can’t even take the time to apologise when they do a mistake…. The item is very well build and you can feel the quality but really pray for not having an issue with thomann…
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VK
Good
Vlad K 28.08.2024
I bought this together with the L-beam, used the notched edge sides on 24,75", 25", 25,1" (Ibanez SZ) and 26,5" scale guitars. Also has a straight side to place on top of the frets. I have no complaints!
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N
Great tool
NoNaMe... 17.09.2025
If you own more than one guitar and want to do the setup yourself then this surely is a very useful tool.
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F
Very useful tool
Fuyuto 10.10.2025
Excellent quality product, very versatile for all my guitar needs.
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