PRS Private Stock 30th Anniversary

MusicNomad MN821 Tri-Beam 3 'n 1 Dual Notched Straightedge

Item ID: MN821
MusicNomad MN821 Tri-Beam 3 'n 1 Dual Notched Straightedge
Reviews for

MusicNomad MN821 Tri-Beam 3 'n 1 Dual Notched Straightedge Reviews

Tri-Beam Notched Straightedge with 17.6" Flat Edge, 25.5" Notched Edge, and 24.75" Notched Edge

While a traditional straightedge sits directly atop an instrument’s frets, the unfortunate truth is that frets are not always perfectly level — much to the dismay of guitar techs everywhere! So, if you’re trying to gauge the fingerboard’s straightness, you’ll need a tool such as MusicNomad’s MN821 Tri-Beam 3 ’n 1 Notched Straightedge. This beam features notches cut into two of its three edges to accommodate a multitude of scale lengths, and since the beam contacts the wood instead of the frets, it offers a perfect readout of how straight your fingerboard is. Moreover, the third edge functions as a bog-standard beam for the rest of your standard straightedge duties, including determining how level your frets are. Whether you’re a professional luthier or an at-home DIY tech, Sweetwater’s guitar maintenance gurus find the MusicNomad Tri-Beam 3 ’n 1 notched Straightedge to be a simple, accurate, and highly cost-effective solution to gauge the straightness of both your fingerboard and your frets.

More Details
Price:$42 and 99 cents
$8.00 suggested monthly payments with 6 month financing‡ 36 month financing available* with $399.00 minimum purchase on one invoice.
Add to Cart
In Stock!

Page 1 of 1
April 5, 2026

3 in one straightedge

By Troy from Montana
Music Background: Lousy plucker

Definitely flat, I put it on my table saw, and it was perfect. I used it on two guitars to check the neck, one a Gibson scale and the other a Fender scale. It worked perfect for both. I will say that if you were to use this every day, you would want one that would stay upright on it's own. It's a bit hard to hold perfectly still while you check the necks. Someone like me with only 5 guitars will not use it daily, so it works fine. All the MusicNomad tools I have all work fine, and the quality is up there with Stew-Mac in my opinion.

February 20, 2026

Just what I needed

By Rick from Montana

This worked great! Service has been above and beyond.

December 24, 2025

When the neck matters for all your guitars

By Andy A. from East Stroudsburg PA
Music Background: Son Lewis/Silk City Recording Company performer, composer, recording artist, producer/engineer since 1964.

The Nomad Tri-beam gives me the ability to work on all my acoustic and electric guitars with a tool built to be both perfect and diverse. Nomad's attention to detail is apparent in this as in all their guitar tools. With 19 guitars, a Mandolin and a Uke I depend on Nomad and the Tri-Beam to help keep my gear in "Tune Up" shape.

November 22, 2025

Mine Seems Accurate

By Jon from Severn, Maryland
Music Background: strictly amateur beginner

Takes the guess work out of working on my guitar at home. Thanks, Guys at Sweetwater!

November 1, 2025

Gotta have!

By Erin

If your guitar is set up properly. How can you play?

August 23, 2025

great tool

By paul l. from ROSCOE, NY

Setting up my Instruments has become much easier with this.
I recommend it very much.

February 17, 2025

Straightedge?

By Bobby B. from Denison, TX
Music Background: luthier, Paid musician and Home Studio.

Compared with 3 different straight edges and it's not straight, has a bow in the middle on the Gibson side and a shorth tooth on the high end of the Fender side, straight edge side is bowed slightly as well, probably due to poor Quality Control and for this much inaccuracy the price is ridiculous. Really a poorly made (Chinese) tool IMHO!

February 17, 2025

makes it easy

By dale from IN

Great product and thanks to Greig Hutchens for always doing a great job.

January 19, 2025

Tri beam straightedge

By Frank R. from Baltimore Md
Music Background: Been playing guitar/bass for about 30 years.

Excellent tool. A must have. The design of this 3in1 is amazing. Music Nomad makes some of the best tools and has Excellent customer service.

January 3, 2025

a must have

By Sweetwater Customer

A must have for anyone that likes to work on their own gear!

July 30, 2024

NICE

By John . from PA

Set all my guitars with it.If you set up your guitars ,it's a must have!

February 20, 2024

Perfect

By Sweetwater Customer

Works really well. Takes any high or low frets out of the measurement process. Quality is great and it is straight unlike some cheaper straightedge out there. Well worth it.

December 12, 2023

Music Nomad MN821 Tri-Beam notched straight edge

By Todd H. from 2122 Reckeweg rd

Very pleased with this purchase. I have quite a collection of guitars, so I always seem to be adjusting one. This fits all of the different types of necks and is compact enough to keep out of the way when I'm not using it. As always I appreciate the help from my fantastic sales engineer Chris Moseley. He is the best!

October 17, 2023

MusicNomad MN821 Tri-Beam

By Robert D.

The MusicNomad MN821 Tri-Beam 3 'n 1 Dual Notched Straightedge is a great tool to have for those that like to work on their own stuff, it's a nice quality tool in a pleasing color, and if you look down through it kinda has a kaleidoscope look making it fun as well...

Rumble Road Records & NoSlip Records

of

Have Questions About the MN821 Tri-Beam 3 'n 1 Dual Notched Straightedge?

Or call us at (800) 222-4700
Questions about the MusicNomad MN821 Tri-Beam 3 'n 1 Dual Notched...?

Sweetwater's Sales Engineers are regarded as the most experienced and knowledgeable professionals in the music industry, with extensive music backgrounds and intense training on the latest products and technologies. They are available to offer you personalized product advice any time you need it.

Type your question below or call us at (800) 222-4700
Thank You!