--- product_id: 254215805 title: "FretGuru 8-in-1 String Action Gauge Guitar Fret Ruler Precision Fret Rocker - Precise CNC Machined, Diamond Honed, Polished Edge Guitar String Height Gauge - Luthier Tool with Thick Leather Case" brand: "fretguru" price: "$66.44" currency: USD in_stock: true reviews_count: 1 url: https://www.desertcart.us/products/254215805-fretguru-8-in-1-string-action-gauge-guitar-fret-ruler store_origin: US region: United States of America --- # Handmade thick leather case 0.005" precision increments CNC machined & diamond honed FretGuru 8-in-1 String Action Gauge Guitar Fret Ruler Precision Fret Rocker - Precise CNC Machined, Diamond Honed, Polished Edge Guitar String Height Gauge - Luthier Tool with Thick Leather Case **Brand:** fretguru **Price:** $66.44 **Availability:** ✅ In Stock ## Summary > 🎸 Elevate your guitar game with precision that rocks! ## Quick Answers - **What is this?** FretGuru 8-in-1 String Action Gauge Guitar Fret Ruler Precision Fret Rocker - Precise CNC Machined, Diamond Honed, Polished Edge Guitar String Height Gauge - Luthier Tool with Thick Leather Case by fretguru - **How much does it cost?** $66.44 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/254215805-fretguru-8-in-1-string-action-gauge-guitar-fret-ruler) ## Best For - fretguru enthusiasts ## Why This Product - Trusted fretguru brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Durable stainless steel body with permanent laser etching—no fading or wear. - • **Nut Slot Mastery:** Unique .010" thick corner slips perfectly into nut slots for perfect string height. - • **Travel-Ready Elegance:** Includes a handcrafted USA leather case for stylish protection on the go. - • **Pinpoint Precision Setup:** Laser-etched markings in .005" increments for flawless string action tuning. - • **Scratch-Free Fret Rocker:** CNC-machined, diamond-honed edges ensure fret inspection without damage. ## Overview The FretGuru 8-in-1 String Action Gauge is a premium, CNC-machined stainless steel tool designed for ultra-precise guitar setup. Featuring laser-etched markings in .005" increments, a diamond-honed fret rocker, and a unique nut slot gauge, it enables professional-grade adjustments without fret damage. Packaged with a handmade thick leather case, it’s the ultimate companion for luthiers and serious guitarists seeking flawless playability. ## Description Get ready for adjustments you can hear and feel! Introducing the new from the ground up 8+ function FretGuru 2 – faster and more precise guitar setup guaranteed. At first look, you'll marvel over the silky smooth edges that are first carefully CNC machined and beveled then diamond honed and polished by hand (by me). Some may say that’s overkill but after years of frustration dealing with ragged edged rulers and action gauges that left scratches on my and my customer’s freshly polished frets, I was no longer willing to accept this damage. You shouldn’t either.We sold out of the original version FretGuru far sooner than expected, and it would have been easy to just run another batch. But we're not looking for "easy.” We received killer input from the world’s top luthiers, and the ideas were so good we HAD to include them in the new design. While we were at it, we made it more sexy, too.Since the FretGuru 2 has been such a hit with our fellow guitar geeks out there, we wanted to create something special to really kick it up a notch. So we worked closely with a local craftsman to create these sweet 100% handmade in USA leather cases and are excited to include one with every order. You’ll rely on FretGuru 2’s precision at home, in the workshop, and on the road. Setup has never been more accurate – and the proof is in the playing. Your guitar will become the sweet-toned beast it was always meant to be. ## Features - Precise string action gauge in .010" (ten thousandths of an inch) number increments, and .005" line increments = super accurate guitar setup! The markings are NOT printed - they are actually laser etched through the black surface, deeply into the stainless metal. No printing to rub off! Also check out the new, precision 64ths string action gauge. The accuracy of the FretGuru 2 will bring your guitar out of the realm of woodworking and into another world of playability. - Unique, first of it's kind fret height/fret wear gauge in .005" increments. No more fumbling with calipers, straightedges or feeler gauges. - Fret rocker! The 3 unequal length sides are CNC machined, precision diamond honed and polished. Now you can find that pesky high fret without scratching your frets. - Another first - the uniquely designed Nut Slot Height gauge, which has already been a massive time-saver here on the workbench. - You’ll notice the silver square on the bottom corner of the gauge. This corner is designed and engineered to be just under .010” thick, which allows it to slip into each nut slot - including the narrow high e slot. - Simply rest the thin corner into the bottom of each nut slot - and the other end across to the 2nd fret, then measure the gap as the gauge passes over the 1st fret. It's never been easier to zero in on the perfect string height as it leaves the nut. Also, be sure to check out the separate listing for the sweet handmade custom leather case! Double click on the photos for the expanded view. ## Technical Specifications | Specification | Value | |---------------|-------| | Item Weight | 37 g | | Package Dimensions | 9.5 x 6.6 x 1.5 cm; 37 g | | Item model number | Fre-7925 | | Back Material | Metal | | Body Material | Metal | | Color Name | inch | | Compatible Devices | guitar | | Scale Length | 24.75 inches | | String Material | Stainless Steel | | Top Material | Metal | | Neck Material Type | Metal | | Guitar Bridge System | Fixed | | Material Type | Stainless Steel | | Standing screen display size | 8 Inches | ## Product Details - **Brand:** FretGuru - **Colour:** inch - **Top material type:** Metal - **Body material:** Metal - **Back material type:** Metal ## Images ![FretGuru 8-in-1 String Action Gauge Guitar Fret Ruler Precision Fret Rocker - Precise CNC Machined, Diamond Honed, Polished Edge Guitar String Height Gauge - Luthier Tool with Thick Leather Case - Image 1](https://m.media-amazon.com/images/I/81tUcu25P6L.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐ Choose the type wisely (metric/inches) *by S***V on 8 August 2025* The item is as cool as described, the only thing I want to highlight to everyone is - ensure that you choose a correct version of the tool, as I was sure that getting metric one, but now I learn how to read inches. It’s not a merchant issue, but important to note. ## Frequently Bought Together - FretGuru String Action Gauge Guitar Fret Ruler Precision Fret Rocker Precise CNC Machined, Diamond Honed, Polished Edge Guitar String Height Gauge Luthier Tool with Thick Leather Case - Guitar Neck Rest, Guitar Neck Cradle Support Pillow String Instrument Luthier Tool for Guitar Workstation, Ukuleles, Violins, Banjos, Mandolins - iLuiz Guitar Neck Notched Straight Edge Luthiers Tool for Gibson Fender and Most of Guitar Fretboard and Frets --- ## 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.us/products/254215805-fretguru-8-in-1-string-action-gauge-guitar-fret-ruler](https://www.desertcart.us/products/254215805-fretguru-8-in-1-string-action-gauge-guitar-fret-ruler) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-20*