GW NOTCHED PRECISION STRAIGHTEDGE FOR GUITAR SCALE 24.75"/25.50"
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GW
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A precise tool for neck and truss rod adjustment
This G&W dual notched straight edge ruler is designed for adjustment and diagnostic operations on guitars: relief control, detection of hollow or bulging areas, and quick verification before lowering the action. Thanks to its notches, you measure the neck straightness at the fretboard level without being affected by the fret height, a real advantage for fine adjustments, regular maintenance, or luthier interventions.
Technical specifications
| Category | Tools | Use | fretboard, guitar |
| Type | dual notched straight edge ruler for guitar neck | Cutting | CNC laser |
| Scale length compatibility | 24.75" and 25.50" | Length | 550 mm |
| Material | stainless steel | Width | 40 mm |
| Thickness | 2 mm | ||
Questions frequently asked
Is this ruler compatible with a Gibson or Fender guitar?
Both notches correspond to scale lengths of 24.75 inches and 25.50 inches. Therefore, compatibility depends on the scale length of the guitar in question.
How to check the neck relief without considering the frets?
The notches allow the ruler to rest on the fingerboard without being affected by the fret height. This makes it possible to check the straightness of the neck before adjusting the truss rod.
What is the length of the G&W 24.75/25.50 notched ruler?
The ruler measures 550 mm in length and 40 mm in width.
What material is used for this luthier's ruler?
It is made of stainless steel, with a thickness of 2 mm. The cutting is done by CNC laser.
Can it help detect a hollow or bowed neck?
Using it on the fingerboard allows detection of hollow or bowed areas. This check is especially useful when diagnosing the neck or before attempting a lower action setup. The two supported scale lengths are 24.75 and 25.50 inches.



