---
product_id: 30908020
title: "StewMac Understring Radius Gauges, Set of 9, Standard Width"
brand: "stewmac"
price: "MX$2672"
currency: MXN
in_stock: true
reviews_count: 12
category: "Stew Mac"
url: https://www.desertcart.mx/products/30908020-stewmac-understring-radius-gauges-set-of-9-standard-width
store_origin: MX
region: Mexico
---

# Fits 6-string guitars & 4-string basses 9 precise radii from 7¼" to 20" Low profile for string-on adjustments StewMac Understring Radius Gauges, Set of 9, Standard Width

**Brand:** stewmac
**Price:** MX$2672
**Availability:** ✅ In Stock

## Summary

> 🎸 Master your setup like a pro—because your guitar deserves precision.

## Quick Answers

- **What is this?** StewMac Understring Radius Gauges, Set of 9, Standard Width by stewmac
- **How much does it cost?** MX$2672 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/30908020-stewmac-understring-radius-gauges-set-of-9-standard-width)

## Best For

- stewmac enthusiasts

## Why This Product

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

## Key Features

- • **Universal Compatibility:** Standard width fits string spreads up to 2-5/8", perfect for 6-string guitars and 4-string basses alike.
- • **Precision in Every Curve:** Nine exact radius options cover all common guitar and bass setups, ensuring flawless fretboard alignment.
- • **Built to Outlast Your Gig:** Backed by StewMac’s Lifetime Promise, this tool set is a lifelong investment in your craft.
- • **Trusted by Pros, Loved by Techs:** Top-rated precision tool with 4.8 stars and glowing reviews—join the elite circle of guitar techs who never compromise.
- • **Effortless String-On Adjustments:** Low-profile design lets you measure and set saddle heights without removing strings—save time and maintain tone.

## Overview

The StewMac Understring Radius Gauges Set of 9 offers nine meticulously crafted radii from 7¼" to 20", designed for standard-width 6-string guitars and 4-string basses. Its low-profile design enables string-on adjustments, making it an essential precision tool for guitar technicians. Built with durability and backed by a lifetime warranty, this set is a professional-grade solution for flawless fretboard and saddle alignment.

## Description

Buy StewMac Understring Radius Gauges, Set of 9, Standard Width | 9 Radii: 7-1/4 to 20 Inch, Fits String Spreads to 2-5/8 In, Use with Strings On, 6-String Guitar and Most 4-String Bass: Tools - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Quality tools! - We all know these tools from StewMac are expensive, but it's for good reason. These are all you'll need for radius gauges. They are accurate on top and bottom side. Easy to use.
Review: Awesome - It is stewmac so you know it is made with precision and good quality. A must have tool if you have fixed or hardtail bridges. And because I bought it through desertcart did not have to pay the high stewmac shipping cost. With much faster shipping through desertcart as well.

## Features

- COMPLETE SET FOR GUITAR TECHS: Radii include 7-1/4", 9-1/2", 10", 12", 14", 15", 16", 17", 20" for all setups
- STANDARD SET of 9: Fits string spreads up to 2-5/8" ideal for 6-string guitars and 4-string basses
- ACCURATE STRING HEIGHT MATCHING: Use top curvature to align saddle or polepiece height to fingerboard arc
- LOW PROFILE FOR STRING-ON USE: Read fretboard radius and set saddles without removing strings
- BUILT TO LAST A LIFETIME: All StewMac tools are backed by our Lifetime Promise for lifelong durability and our expert tech support is there when you need it most

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01HUCLDZ6 |
| Best Sellers Rank | #5,843 in Musical Instruments ( See Top 100 in Musical Instruments ) #119 in Guitar Tools |
| Brand | StewMac |
| Brand Name | StewMac |
| Color | Silver |
| Customer Reviews | 4.8 out of 5 stars 158 Reviews |
| Guitar Bridge System | Fixed |
| Guitar Pickup Configuration | Magnetic |
| Included Components | Set of 9 radius gauges |
| Instrument | guitar |
| Instrument Size | Standard Width, Set of 9 |
| Manufacturer | StewMac |
| Manufacturer Part Number | 0353 |
| Model Name | Understring Radius Gauge Tool, Set of 9, Standard Width for Guitar Setup |
| Model Number | 0353 |
| Number of Items | 9 |
| Number of Strings | 6 |
| Set Name | Standard Width, Set of 9 |
| UPC | 840014709724 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** StewMac
- **Color:** Silver
- **Guitar Bridge System:** Fixed
- **Guitar Pickup Configuration:** Magnetic
- **Manufacturer:** StewMac
- **Number of Items:** 9
- **Number of Strings:** 6
- **Set Name:** Standard Width, Set of 9
- **UPC:** 840014709724
- **Unit Count:** 1.00 Count

## Images

![StewMac Understring Radius Gauges, Set of 9, Standard Width - Image 1](https://m.media-amazon.com/images/I/61hKgGiJsoL.jpg)
![StewMac Understring Radius Gauges, Set of 9, Standard Width - Image 2](https://m.media-amazon.com/images/I/71eBoIk2oqL.jpg)
![StewMac Understring Radius Gauges, Set of 9, Standard Width - Image 3](https://m.media-amazon.com/images/I/81Y+TjiI00L.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality tools!
*by C***A on October 4, 2024*

We all know these tools from StewMac are expensive, but it's for good reason. These are all you'll need for radius gauges. They are accurate on top and bottom side. Easy to use.

### ⭐⭐⭐⭐⭐ Awesome
*by A***R on March 7, 2024*

It is stewmac so you know it is made with precision and good quality. A must have tool if you have fixed or hardtail bridges. And because I bought it through Amazon did not have to pay the high stewmac shipping cost. With much faster shipping through Amazon as well.

### ⭐⭐⭐⭐⭐ Worth the extra money over the cheapies.
*by D***L on May 31, 2025*

These are a bit pricey but, trust me, you get what you pay for with luthier tools. Believe me, I've learned the hard way on a few things over the years. It's the same with this product. You can find gauges for $10.00 a set. Don't fall for it. They'll either be inaccurate, have sharp edges, won't fit under the strings, or all of the above. Just fork over the extra $20 or $30 and be done with it. Buy once, cry once. You'll be glad you did.

## Frequently Bought Together

- StewMac Understring Radius Gauge Tool, Set of 9, Standard Width for Guitar Setup
- StewMac String Action Gauge And Ruler, Metric, Stainless Steel - Designed by StewMac, The Original measuring tool for acoustic and electric guitar, and bass setup
- StewMac Fret Rocker - The Original Stainless Steel 4-in-1 Mini Straightedge Luthier Tool, Precision-Machined for Accuracy, Locate High Frets Fast

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**Shop now:** [https://www.desertcart.mx/products/30908020-stewmac-understring-radius-gauges-set-of-9-standard-width](https://www.desertcart.mx/products/30908020-stewmac-understring-radius-gauges-set-of-9-standard-width)

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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-08-16*