Music Nomad MN820 Tri-Beam 3 & 1 Straightedge Ruler & Scale Length Ruler- Discountinued Model

Three precision straightedges and a scale-length ruler in one tool. The Music Nomad MN820 Tri-Beam is a triangle-shaped 3-in-1 straightedge for checking whether frets and fingerboard are level. It has the three key lengths – 17.6″, 12″ and 6.5″ – plus rulers and 13 popular scale lengths. This is the original MN820 model, now discontinued by the maker.

Why customers choose it

• 3 straightedges in 1: 17.6″ (44.7 cm), 12″ (30.5 cm) and 6.5″ (16.5 cm) on one tool.
• Find the problem fast: check global or local fret and fingerboard issues up and down the neck.
• Flex-free and easy to hold: three-wall triangle design.
• Accurate edges: precision ground and lapped to +/- .00125″ per foot.
• Measure scale length: SAE and metric rulers plus 13 popular guitar and bass scale lengths.
• Built to last: 6063-T5 aluminium with blue anodized finish, made on a 5-axis CNC, hang hole included.

Who it is for

Luthiers, repair techs and DIY players who level frets, diagnose buzzing or set up guitars and basses.

Specifications

Good to know

• From the 12th fret you can check approximate bridge placement with the scale-length ruler.
• The scale ruler also helps choose the right MusicNomad Fret Shield size.
• Discontinued by the maker; the current model is MN821 (dual notched).