---
product_id: 5601619
title: "FretGuru String Action Gauge Guitar Fret Ruler Precision Fret Rocker Precise CNC Machined, Diamond Honed, Polished Edge Guitar String Height Gauge Luthier Tool with Genuine Leather Case"
brand: "fretguru"
price: "$62.44"
currency: USD
in_stock: true
reviews_count: 13
category: "Fret Guru"
url: https://www.desertcart.us/products/5601619-fretguru-string-action-gauge-guitar-fret-ruler-precision-fret-rocker
store_origin: US
region: United States of America
---

# Includes genuine leather case 0.005" precision increments CNC machined diamond-honed edges FretGuru String Action Gauge Guitar Fret Ruler Precision Fret Rocker Precise CNC Machined, Diamond Honed, Polished Edge Guitar String Height Gauge Luthier Tool with Genuine Leather Case

**Brand:** fretguru
**Price:** $62.44
**Availability:** ✅ In Stock

## Summary

> 🎸 Master your guitar setup like a pro—precision, durability, and style in one sleek tool!

## Quick Answers

- **What is this?** FretGuru String Action Gauge Guitar Fret Ruler Precision Fret Rocker Precise CNC Machined, Diamond Honed, Polished Edge Guitar String Height Gauge Luthier Tool with Genuine Leather Case by fretguru
- **How much does it cost?** $62.44 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/5601619-fretguru-string-action-gauge-guitar-fret-ruler-precision-fret-rocker)

## 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

- • **All-in-One Multi-Tool:** Combines string action gauge, fret rocker, and nut slot height gauge to replace multiple tools and speed up your workflow.
- • **Luxury Meets Function:** Comes with a handcrafted genuine leather case, elevating your toolkit with style and protection.
- • **Effortless Readability:** High-contrast laser etching on black metal surface makes measurements visible even in low light—setup anytime, anywhere.
- • **Pinpoint Precision Setup:** Laser-etched markings in .005" increments ensure flawless string action and fret height measurements every time.
- • **Durable Pro-Grade Craftsmanship:** CNC machined stainless steel with diamond-honed, polished edges for scratch-free, long-lasting accuracy.

## Overview

The FretGuru String Action Gauge is a precision CNC-machined stainless steel multi-tool designed for guitarists and luthiers. Featuring laser-etched markings in .005" increments, a fret rocker with diamond-honed edges, and a unique nut slot height gauge, it enables ultra-accurate string height, fret wear, and nut slot measurements. Packaged with a genuine leather case, this tool combines professional-grade durability with elegant design, making it essential for perfect guitar setups and maintenance.

## Description

Product description

Review: Critical measurements are easily made with an intuitive, easy-to-read multi-tool. - I am a bass player moving over to guitar, and I'm lucky enough to have a few Gibsons, vintage Fenders and Hamers, and a few Rickenbackers. But I'm not a guitar geek -- I just have poor impulse control. I did come to realize, though, that the instruments really were only as good as their setup, and that I sure don't have the talent to overcome a poor setup. And I can't rely on others to have the time to do setup work when I need it. So I've slowly been teaching myself. And in doing so, I was appalled at some of the imprecise methods, and makeshift tools, that people online (and in a couple'a books) were recommending. So, after a lot of research, I settled on the Fret Guru. Before I could buy mine, though, FretGuru introduced the FretGuru2. This thing is incredible. It's a finely machined dream, with useful measurement after measurement. The no brainers are: (1) the string height measurements [in 100ths of an inch, or 10/1000" increments]. Bridge and, if necessary, truss-rod adjustments are a breeze after determining string height. The FretGuru2 allows a user to easily read string height precisely - the measuring lines are fine, but in sharp gold/white on black relief that can be seen by candlelight -- and I've had to do just that; (2) fret height measurement, in 5/1000" increments. The slotting of each gauged measurement allows you to easily measure the lowest area of fret wear on any given fret, and to actually see spots where differing strings sizes and attacks have unevenly ground down the fret. If the frets are not too badly worn, they can be leveled and easily measured throughout the process -- and if they're toast, you'll quickly see; and (3) nut slot depth. This measurement was key to me -- I found that the nut on an older Rick 4001 was down far enough to effectively preclude clean fretting an intonation. And the fretguru2 made it a breeze to see the nut-slot depth in relation to the first fret. I've mentioned the obvious ones that will be used constantly, but I should also mention that there are super-fine rulers, in both metric and English measurement, and a ready conversion chart as well. Because this is so precise, so intuitive, and SO EASY to READ, I've given it a five -- I can't see flaws, and the quality (in an easy-to-manage size) is outstanding. Christmas gifts for my other idiot guitar and bass nuts. . . .
Review: Worthwhile, convenient tool. - Top quality, as represented. Leather case is a nice addition. Good tools last a lifetime (at least one!) and give a sense of satisfaction when in use. This is no exception. Makes everything during setup easier, and provides accurate, repeatable measurements.

## 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 |
|---------------|-------|
| ASIN | B00HG29EYI |
| Back Material Type | Metal |
| Best Sellers Rank | #3,464 in Musical Instruments ( See Top 100 in Musical Instruments ) #61 in Guitar Tools #613 in Electric Guitar Parts |
| Body Material | Metal |
| Body Material Type | Metal |
| Brand | FretGuru |
| Brand Name | FretGuru |
| Color | inch |
| Customer Reviews | 4.8 out of 5 stars 2,010 Reviews |
| Fretboard Material Type | Wood |
| Guitar Bridge System | Fixed |
| Guitar Pickup Configuration | H-H |
| Hand Orientation | Left |
| Included Components | Leather Case |
| Instrument | Guitar |
| Instrument Size | Compact |
| Manufacturer | FretGuru |
| Manufacturer Part Number | 7539563258 |
| Material Type | Stainless Steel |
| Model Name | Fre-7925 |
| Model Number | Fre-7925 |
| Neck Material Type | Metal |
| Scale Length | 25.125 inches |
| String Material Type | Stainless Steel or Alloy Steel |
| String Nut Width | 0.1 Inches |
| Top Material Type | Alder Wood |
| UPC | 617209380118 061720938011 |
| Unit Count | 1.0 Count |
| Warranty Description | Na. |

## Product Details

- **Back Material Type:** Metal
- **Body Material:** Metal
- **Brand:** FretGuru
- **Color:** inch
- **Fretboard Material Type:** Wood
- **Guitar Pickup Configuration:** H-H
- **Hand Orientation:** Left
- **Neck Material Type:** Metal
- **String Material Type:** Stainless Steel or Alloy Steel
- **Top Material Type:** Alder Wood

## Images

![FretGuru String Action Gauge Guitar Fret Ruler Precision Fret Rocker Precise CNC Machined, Diamond Honed, Polished Edge Guitar String Height Gauge Luthier Tool with Genuine Leather Case - Image 1](https://m.media-amazon.com/images/I/81tUcu25P6L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Critical measurements are easily made with an intuitive, easy-to-read multi-tool.
*by M***N on March 11, 2015*

I am a bass player moving over to guitar, and I'm lucky enough to have a few Gibsons, vintage Fenders and Hamers, and a few Rickenbackers. But I'm not a guitar geek -- I just have poor impulse control. I did come to realize, though, that the instruments really were only as good as their setup, and that I sure don't have the talent to overcome a poor setup. And I can't rely on others to have the time to do setup work when I need it. So I've slowly been teaching myself. And in doing so, I was appalled at some of the imprecise methods, and makeshift tools, that people online (and in a couple'a books) were recommending. So, after a lot of research, I settled on the Fret Guru. Before I could buy mine, though, FretGuru introduced the FretGuru2. This thing is incredible. It's a finely machined dream, with useful measurement after measurement. The no brainers are: (1) the string height measurements [in 100ths of an inch, or 10/1000" increments]. Bridge and, if necessary, truss-rod adjustments are a breeze after determining string height. The FretGuru2 allows a user to easily read string height precisely - the measuring lines are fine, but in sharp gold/white on black relief that can be seen by candlelight -- and I've had to do just that; (2) fret height measurement, in 5/1000" increments. The slotting of each gauged measurement allows you to easily measure the lowest area of fret wear on any given fret, and to actually see spots where differing strings sizes and attacks have unevenly ground down the fret. If the frets are not too badly worn, they can be leveled and easily measured throughout the process -- and if they're toast, you'll quickly see; and (3) nut slot depth. This measurement was key to me -- I found that the nut on an older Rick 4001 was down far enough to effectively preclude clean fretting an intonation. And the fretguru2 made it a breeze to see the nut-slot depth in relation to the first fret. I've mentioned the obvious ones that will be used constantly, but I should also mention that there are super-fine rulers, in both metric and English measurement, and a ready conversion chart as well. Because this is so precise, so intuitive, and SO EASY to READ, I've given it a five -- I can't see flaws, and the quality (in an easy-to-manage size) is outstanding. Christmas gifts for my other idiot guitar and bass nuts. . . .

### ⭐⭐⭐⭐⭐ Worthwhile, convenient tool.
*by N***1 on September 6, 2025*

Top quality, as represented. Leather case is a nice addition. Good tools last a lifetime (at least one!) and give a sense of satisfaction when in use. This is no exception. Makes everything during setup easier, and provides accurate, repeatable measurements.

### ⭐⭐⭐⭐⭐ Well-designed, carefully manufactured, and much easier to use than cheap knock-offs
*by G***X on January 20, 2016*

I'm really impressed with the FretGuru 2. It has many features that are lacking in most fret gauges, but even those that are common are better executed in this version than in others. I initially resisted buying this because there were so many cheap alternatives, but I am convinced this is worth the money and the cheap gauges are practically worthless. Here are some key differences I noted in my first use of the FretGuru 2: 1) The stenciling is much higher quality. I have a couple of cheap fret gauges and they arrived with spotty printing in the first which in some places has further rubbed off with use. The FretGuru 2 stenciling looks flawless and appears it will retain its finish much better. 2) The gauges and rulers are much easier to read. The light-on-black printing is much better in my eyes than the black-on-grey of essentially all other gauges. When you are trying to spot the line that's just below your string, it's much easier to find. 3) The fret height gauge is unique and much easier to use than trying to measure with a ruler. 4) The conversion chart on the back seems much more complete and is definitely tons easier to read than on the cheap gauges. These are just a few reasons why I felt he FretGuru 2 was worth the price. I recommend buying it first. If you buy the cheap gauges and you're serious about adjusting/maintaining your guitars you'll only end up replacing them with this later.

## 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/5601619-fretguru-string-action-gauge-guitar-fret-ruler-precision-fret-rocker](https://www.desertcart.us/products/5601619-fretguru-string-action-gauge-guitar-fret-ruler-precision-fret-rocker)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-06*