--- product_id: 30908020 title: "Understring Radius Gauges, Set of 9, Standard Width" brand: "stewmac" price: "₩126379" currency: KRW in_stock: true category: "Stew Mac" url: https://www.desertcart.kr/products/30908020-understring-radius-gauges-set-of-9-standard-width store_origin: KR region: South Korea --- # Fits 6-string guitars & 4-string basses 9 precise radii from 7¼" to 20" Low profile for string-on adjustments Understring Radius Gauges, Set of 9, Standard Width **Brand:** stewmac **Price:** ₩126379 **Availability:** ✅ In Stock ## Summary > 🎸 Tune your setup like a pro—because your guitar deserves precision. ## Quick Answers - **What is this?** Understring Radius Gauges, Set of 9, Standard Width by stewmac - **How much does it cost?** ₩126379 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/30908020-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 - • **String-On Convenience:** Designed low-profile to measure and adjust saddles without removing strings—save time, stay in the groove. - • **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:** Crafted with lifetime durability backed by StewMac’s expert support—invest once, perform forever. - • **Trusted by Pros, Loved by Techs:** Top-rated tool (#81 in Guitar Tools) with 4.8 stars from 162 reviews—join the elite who refuse to settle. ## Overview The StewMac Understring Radius Gauges Set of 9 offers nine meticulously crafted radii from 7-1/4" to 20", designed for standard-width 6-string guitars and 4-string basses. Its low-profile design allows accurate saddle and polepiece height adjustments without removing strings, streamlining setups. Built for lifetime durability and backed by expert support, this tool is a must-have for professional guitar technicians and serious enthusiasts seeking precision and reliability. ## 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 ## 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 | #5,384 in Musical Instruments ( See Top 100 in Musical Instruments ) #103 in Guitar Tools | | Brand | StewMac | | Brand Name | StewMac | | Color | Silver | | Customer Reviews | 4.8 out of 5 stars 162 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 | | Item Highlight | 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 | | 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 Strings:** 6 - **Set Name:** Standard Width, Set of 9 - **UPC:** 840014709724 - **Unit Count:** 1 Count ## Images ![Understring Radius Gauges, Set of 9, Standard Width - Image 1](https://m.media-amazon.com/images/I/61hKgGiJsoL.jpg) ![Understring Radius Gauges, Set of 9, Standard Width - Image 2](https://m.media-amazon.com/images/I/71eBoIk2oqL.jpg) ![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. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.kr/products/30908020-understring-radius-gauges-set-of-9-standard-width](https://www.desertcart.kr/products/30908020-understring-radius-gauges-set-of-9-standard-width) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-09-29*