Detail 01
17.6 in, 12 in, and 6.5 in working lengths
Lets you check different spans of the neck when isolating level issues.
Product detailSKU #1500000396865
Music NomadTri-Beam 3 'n 1 Dual Notched & Precision Straight Edge
1/6
Independent shopping perspective
The Korena take
Music Nomad’s Tri-Beam is a three-sided aluminum straightedge for checking fret and fingerboard level along a guitar or bass neck. Its 17.6-inch, 12-inch, and 6.5-inch edges let you move from a broad neck check to a more localized inspection. Smooth polished edges support accurate contact, while SAE and metric rulers and 13 marked scale lengths put common measurement references on the same tool. A hang hole keeps it accessible in a maintenance area.
Strong match
Who this is for
- Checking broad and localized level issues across a guitar or bass fretboard during maintenance.
- Verifying one of 13 marked popular guitar or bass fret scale lengths at the workbench.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Three-wall triangle design
Provides three straightedge lengths in one tool.
Detail 03
Polished flat edges
Provides smooth contact edges for fretboard and fret-level checks.
Detail 04
SAE and metric ruler markings
Keeps both measurement systems available on the straightedge.
Detail 05
13 popular guitar and bass scale-length markings
Allows a quick reference check for the marked scale lengths.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What can the Tri-Beam measure?
It is designed to measure fret and fingerboard level and to help identify broad or localized issues along the neck.
02What lengths does it provide?
It has 17.6-inch, 12-inch, and 6.5-inch working lengths.
03Does it include scale-length references?
Yes. It has markings for 13 popular guitar and bass fret scale lengths.
