Universal Guitar Notched Edge
- Gary Carter
- 5 days ago
- 2 min read

FULL RANGE
Top to Bottom:-
1) 24" to 27" - 630mm to 685mm inclusive with 400mm long precision straight edge.
2) 27" to 30" - 685mm to 762mm inclusive with 450mm long precision straight edge.
3) 30" to 34" - 762mm to 864mm inclusive with 500mm long precision straight edge.
4) 24" to 30" - 610mm to 762mm inclusive.
5) 27" to 34" - 685mm to 864mm inclusive.
6) 30" to 38" - 762mm to 965mm inclusive.
COMBINATION EXAMPLES
4) & 6) = 24" - 38" Notched Edge Capability.
4) & 3) = 24" - 34" Notched Edge Capability + 500mm long straight edge.
MANUFACTURING
The straight edges are machined in house from stainless steel using specialised carbide tooling.
TOOL DESIGN
The design of our guitar notched edge tool is based on only checking the length of the fretboard that is capable of being deflected. The highest frets are omitted as these are past the heel/neck join and won't be affected by truss rod adjustment or string tension. This keeps the number of notches down to 18 and combined with the unique design of the notch spacing, allows the tool to be used for multiple scales within the ranges specified.
MULTIPLE SCALES CATERED FOR
Example Tool #1) The unique design of the notch spacing allows the tool to be used on the following popular guitar scales : 24", 24.5", 24.5625", 24.625", 24.75", 24.84", 24.9", 25.0", 25.34", 25.4", 25.5", 26", 26.25", 26.5", 27", 630mm, 635mm, 640mm, 645mm, 650mm, 660mm & 670mm.
MULTISCALE GUITARS
Multiscale guitars with bass and treble scales within range specified can also be checked.
ADDITIONAL FEATURE
ANTI-TIP - This prevents the tool from toppling over, allowing it to remain positioned on the neck during setup and adjustment & provides real time observation of changes to the guitar neck and relief. (The Anti-Tip can be used with or without strings fitted).


POSITIONING ON THE NECK
The positioning on the neck will vary depending on the scale of the instrument.
A double dot mark for position reference is provided.
The dots are nominally positioned at the 12th notch on the tool.
For shorter scales, the tool is used with the dots placed at the 11th fret on the guitar and for longer scales the dots are placed at the 13th fret.
NOTE - ZERO FRET GUITARS
For shorter scales the tool bridges over the nut and may not be suitable for guitars that feature a zero fret due to the extended nut position on the instrument. This applies to the smallest scale quoted on the relevant tool. If in doubt, please contact us with your requirement so that we can confirm suitability of the tool.