---
product_id: 378555515
title: "Guitar String Action Gauge, String Height Ruler, Guitar Fret Rocker, Fret Leveling Guide, Buzzing Fret Catcher, 1mm Thickness, Laser Etching, High Precision Graduations,Luthier Tools"
brand: "vencetmat"
price: "HK$231"
currency: HKD
in_stock: true
reviews_count: 5
url: https://www.desertcart.hk/products/378555515-guitar-string-action-gauge-string-height-ruler-guitar-fret-rocker
store_origin: HK
region: Hong Kong
---

# 4-edge fret rocker spans 3 adjacent frets High-precision laser-etched graduations ±0.05mm 1mm thick heavy-duty stainless steel Guitar String Action Gauge, String Height Ruler, Guitar Fret Rocker, Fret Leveling Guide, Buzzing Fret Catcher, 1mm Thickness, Laser Etching, High Precision Graduations,Luthier Tools

**Brand:** vencetmat
**Price:** HK$231
**Availability:** ✅ In Stock

## Summary

> 🎸 Master Your Fretboard with Precision & Style

## Quick Answers

- **What is this?** Guitar String Action Gauge, String Height Ruler, Guitar Fret Rocker, Fret Leveling Guide, Buzzing Fret Catcher, 1mm Thickness, Laser Etching, High Precision Graduations,Luthier Tools by vencetmat
- **How much does it cost?** HK$231 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/378555515-guitar-string-action-gauge-string-height-ruler-guitar-fret-rocker)

## Best For

- vencetmat enthusiasts

## Why This Product

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

## Key Features

- • **Multi-Tool Efficiency:** Combines string action gauge, fret rocker, and slot depth ruler in one sleek, compact tool—stop juggling multiple gadgets.
- • **Anti-Glare Black Plating:** Elegant black finish eliminates distracting reflections, making measurements easier even in bright workshop lighting.
- • **Built to Last, Designed to Perform:** Military-grade stainless steel body resists bending and damage, perfect for the demanding luthier or serious guitarist.
- • **Precision that Hits the Right Note:** Laser-etched, permanent white graduations ensure flawless string height and fret leveling measurements every time.
- • **Metric & Imperial, No Conversion Hassles:** Includes metric, imperial, and 64th markings tailored for all players, with added graduations optimized for classical guitar setups.

## Overview

This Guitar String Action Gauge is a premium luthier tool crafted from heavy-duty 1mm thick stainless steel with military-grade durability. Featuring high-precision laser-etched graduations accurate within 0.05mm, it combines a fret rocker, string height ruler, and slot depth gauge in one. Its anti-glare black plating and clear white markings ensure easy, accurate readings, while multiple measurement scales support both metric and imperial users. Designed to eliminate guesswork and buzzing frets, it’s the essential precision instrument for professional guitar setup and maintenance.

## Description

The string height measurement method is very simple: Bottom of string at 12th fret meets the top of the line. Fret rocker, String height gauge, and slot depth measurement all in one, Stop pay more for fragmented tools.  Product Features: -Made of high hardness stainless steel, Handles any rough movements and drops. -With 4 lengths edge, easily span any three adjacent frets. -Every contact edge is very straight and smooth. If abnormal wobble is perceived, that is where the buzzing fret located, rather than the uncertainty that a product with jagged edges gives you. -The markings are etched by a high-precision laser and then manually colored for a permanent presence. -Each side of edge is finely chamfered, refusing any sharpness, refusing any scratches. -The 1mm thickness completely negates the disadvantage of paper-thin and easy-to-bend, This is why it can only be inserted into slots with a width greater than 1mm,such as bridge slot. -Elegant black plating avoids mirror reflections, which you don't want to encounter. The white marks make reading clear and easy.This is necessary for people with poor eyesight. -Accurate graduations is necessary for accurate measurement of string height, and the error of the graduations is always kept within 0.05mm(1/5 of the hair diameter).-Metric,imperial,64th marking all in one, which is very useful for people not skilled in metric/imperial conversion.-Compared to other similar products, we removed one graduation(0.25mm/0.01in) that was useless for all stringed instruments and added two graduations(3.75~4mm/0.15~0.16in). Why? While the low string height brings a comfortable feel, it also loses sound quality. For classical guitars, 3.75~4mm(0.15~0.16in) is still an option.These two graduations will bring more possibilities for classical guitars.  Package Contents: Vencetmat String Action Gauge & Fret Rocker x 1.

## Features

- Military quality, Heavy duty stainless steel body.
- High precision laser etching scales, permanent retention.
- Rejects any jagged edges, you will get a very flat and smooth leveling edge.
- The beautiful black plating avoids mirror reflections, which you don't want to encounter. The white graduations make reading clear and easy.
- With a thickness of 1mm, you don't need an easy-to-bend, paper-thin Fret Rocker.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Weight | 32 g |
| Product Dimensions | 12 x 9 x 0.5 cm; 32 g |
| Body Material | Stainless Steel |
| Material Type | Stainless Steel |

## Images

![Guitar String Action Gauge, String Height Ruler, Guitar Fret Rocker, Fret Leveling Guide, Buzzing Fret Catcher, 1mm Thickness, Laser Etching, High Precision Graduations,Luthier Tools - Image 1](https://m.media-amazon.com/images/I/61F2VWfMzpL.jpg)

## Customer Reviews

### ⭐ 







  
  
    One side is not straight
  

*by A***R on Reviewed in Canada on 6 September 2022*

Its job is to be dead straight. One edge on the one i received looks straight but when compared with a know straight edge it is off causing frets to seem off when they are not. Ordered the stew Mac one.

### ⭐⭐ 







  
  
    avoid.
  

*by D***M on Reviewed in Canada on 1 August 2022*

poor quality for the money, not one edge was straight.

### ⭐⭐⭐⭐⭐ 







  
  
    had it professionally calibrated; it's accurate
  

*by J***E on Reviewed in the United States on 27 January 2022*

This lil gadget arrived saying "Fret Roker" unlike the photo which has the correct "Rocker" spelling. I wanted to make sure it wasn't a bad quality knockoff, so I sent it to work with my spouse who is a metrologist (calibration engineer). He checked it for me, and sure enough it is super accurate. Woohoo!Works great. I've used it to double check new-to-me used instruments, to help with setups, and ti give measurements when selling off some old instruments. Pretty nice little tool that I lovingly call Fret Roker (perhaps related to Al).

## Frequently Bought Together

- Vencetmat Guitar String Action Gauge, String Height Ruler, Guitar Fret Rocker, Fret Leveling Guide, Buzzing Fret Catcher, 1mm Thickness, Laser Etching, High Precision Graduations,Luthier Tools
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**Shop now:** [https://www.desertcart.hk/products/378555515-guitar-string-action-gauge-string-height-ruler-guitar-fret-rocker](https://www.desertcart.hk/products/378555515-guitar-string-action-gauge-string-height-ruler-guitar-fret-rocker)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-26*