---
product_id: 645956791
title: "Tri-Beam 3 'n 1 Dual Notched Straightedge & Precision Straightedge for Acoustic and Electric Guitars including Fender, Gibson, PRS (MN821)"
brand: "musicnomad"
price: "AR$255609"
currency: ARS
in_stock: true
reviews_count: 5
category: "Music Nomad"
url: https://www.desertcart.com.ar/products/645956791-tri-beam-3-n-1-dual-notched-straightedge-and-precision
store_origin: AR
region: Argentina
---

# 3-in-1 precision straightedges Durable blue anodized aluminum ±0.00125"/ft accuracy tolerance Tri-Beam 3 'n 1 Dual Notched Straightedge & Precision Straightedge for Acoustic and Electric Guitars including Fender, Gibson, PRS (MN821)

**Brand:** musicnomad
**Price:** AR$255609
**Availability:** ✅ In Stock

## Summary

> 🎸 Elevate your guitar care game with the ultimate 3-in-1 precision straightedge!

## Quick Answers

- **What is this?** Tri-Beam 3 'n 1 Dual Notched Straightedge & Precision Straightedge for Acoustic and Electric Guitars including Fender, Gibson, PRS (MN821) by musicnomad
- **How much does it cost?** AR$255609 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/645956791-tri-beam-3-n-1-dual-notched-straightedge-and-precision)

## Best For

- musicnomad enthusiasts

## Why This Product

- Trusted musicnomad brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Premium Durability:** Made from rugged 6063-T5 aluminum with a scratch-resistant blue anodized finish that resists peeling and chipping.
- • **Triple-Edge Mastery:** Three precision straightedges in one tool, covering all major guitar fret scales from 24.625" to 25.625"—never miss a perfect setup.
- • **Precision Engineered:** Crafted with 5-axis CNC machining for flawless flat edges and flex-free triangle design—accuracy you can trust every time.
- • **Unmatched Fretboard Coverage:** Notches span 17.6" (44.7cm), touching 22 fret slots for comprehensive fretboard flatness and neck relief checks.
- • **Designed for Pros, Loved by Players:** Created in Sonoma, CA, this tool is a must-have for guitarists and techs who demand flawless fretwork and setup.

## Overview

The MusicNomad Tri-Beam 3 'n 1 Dual Notched & Precision Straightedge is a professional-grade guitar setup tool featuring three precision-ground edges tailored for electric and acoustic guitars including Fender, Gibson, and PRS. Its patented design covers a wide range of fret scale lengths with notches spanning 17.6" for detailed fretboard and neck relief measurements. Made from durable blue anodized 6063-T5 aluminum and CNC-machined for ±0.00125"/ft accuracy, it ensures reliable, long-lasting performance for guitar technicians and enthusiasts alike.

## Description

Diagnosing how level your frets and fretboard has never been easier with MusicNomad's patent pending Tri-Beam Dual Notched and Precision Straightedge. Creating a new higher standard, our unique 3 wall triangle design gives you two notched straightedges custom designed to cover more fret scale lengths ranging from 24.625" to 25" and 25.34" to 25.625" to measure the flatness of your fretboard and neck relief. Rotate to the 3rd side to use the 17.6" (44.7cm) "notch-free" straightedge to check the levelness of your frets. Using the highest quality aluminum and manufacturing techniques ensures straightness of the entire length and critically important polished, smooth flat edges. We even include a convenient hang hole. That's MusicNomad quality - raising the bar in equipment care.

Review: 他にも有名ブランドの商品がありますが本品が最もコストパフォーマンスが良かったです。 完璧に機能しておりさらに3in1は断トツです。
Review: Great piece of kit. Invaluable for guitarists. This item seems very well machined and accurate (unlike some cheaper brands) well worth the money.

## Features

- 3 STRAIGHTEDGES IN 1: Our patent pending 3 'n 1 design sets a new higher standard for what you should expect when buying a notched straightedge. Our 2 Tri-Beam custom notched straightedges cover most all electric and acoustic guitars such as Gibson, Fender and PRS. Plus, on the 3rd Tri-Beam, you get a 17.6" (44.7cm) "notch-free" straightedge. No other product has 3 straightedges in 1 plus the breadth of guitars the notched straightedge works on.
- PERFECTION BUILT INTO THE DESIGN WITH LONGER LENGTH AND NOTCHES THAT COVER MORE GUITARS: Check the flatness of your fretboard to assist in fretwork with our notches that cover 17.6" of the fretboard and touch the fretboard between 22 fret slots which is more than most other products on the market. You can also use it to measure neck relief to see if you need to adjust the truss rod.
- Custom notch design is like no other specification and works for most electric and acoustic guitars. F-25.5 fits all 25.34" to 25.625" fret scale lengths. G-24.75/P-25 fits all guitars with fret scale lengths ranging from 24.625" to 25".
- 17.6" Precision Flat ("notch-free") Straightedge: Lay on top of the frets to check their flatness and assist in fretwork. All 3 straightedges are precision ground to ensure smooth flat edges within an accuracy tolerance of +/-.00125"/ft.
- Designed by our Sonoma, CA (USA) team, the premium quality 6063-T5 Aluminum has a blue anodized finish that is extremely durable, abrasion resistant and does not peel or chip. Imprecision is eliminated through single setup, continuous 5-axis CNC producing flawless features on all surfaces of our innovative triangle 3 wall design that is easy to hold and flex-free. Convenient hang hole included.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BXFTBLW6 |
| Batteries Included | No |
| Batteries Required | No |
| Best Sellers Rank | #7,069 in Musical Instruments ( See Top 100 in Musical Instruments ) #91 in Acoustic & Classical Guitar Parts |
| Brand | MusicNomad |
| Country of Origin | USA |
| Customer Reviews | 4.8 4.8 out of 5 stars (338) |
| Date First Available | 19 July 2024 |
| Does it contain liquid? | No |
| Generic Name | Tri-Beam 3 'n 1 Dual Notched Straightedge & Precision Straightedge for Acoustic and Electric Guitars including Fender, Gibson, PRS |
| Item Dimensions LxWxH | 44.7 x 2.5 x 2.5 Centimeters |
| Item Weight | 120 g |
| Item model number | MN821 |
| Manufacturer | MusicNomad |
| Material | Aluminium |
| Model | MN821 |
| Model Name | Tri-Beam 3 'n 1 Dual Notched Straightedge & Precision Straightedge for Acoustic and Electric Guitars |
| Mounting Hardware | Hang hole, possibly other accessories |
| Number of items | 1 |
| Product Dimensions | 44.7 x 2.54 x 2.54 cm; 120 g |

## Images

![Tri-Beam 3 'n 1 Dual Notched Straightedge & Precision Straightedge for Acoustic and Electric Guitars including Fender, Gibson, PRS (MN821) - Image 1](https://m.media-amazon.com/images/I/61IIZHHSwZL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by や***ん on 12 January 2026*

他にも有名ブランドの商品がありますが本品が最もコストパフォーマンスが良かったです。 完璧に機能しておりさらに3in1は断トツです。

### ⭐⭐⭐⭐⭐ Review
*by B***C on 28 June 2025*

Great piece of kit. Invaluable for guitarists. This item seems very well machined and accurate (unlike some cheaper brands) well worth the money.

### ⭐⭐⭐⭐⭐ Review
*by E***N on 5 February 2025*

I should have bought this a long time ago! I own several guitars and basses and do my own work and set ups. This is a very well made and valuable tool. It works on many different guitar scales and has on side as a plain straight edge if needed. If you do your own set ups, get this!

## Frequently Bought Together

- MusicNomad Tri-Beam 3 'n 1 Dual Notched Precision Straightedge for Acoustic and Electric Guitars Including Fender, Gibson, PRS (MN821)
- MusicNomad Fret Leveler - Leveling (L-Beam) 17.6" (45cm) for Acoustic and Electric Guitars (MN811)
- MusicNomad MN850 Diamond Coated, Safe Zone Guitar Fret Crowning File & Luthier Tool (S-File)

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**Shop now:** [https://www.desertcart.com.ar/products/645956791-tri-beam-3-n-1-dual-notched-straightedge-and-precision](https://www.desertcart.com.ar/products/645956791-tri-beam-3-n-1-dual-notched-straightedge-and-precision)

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-05-20*