---
product_id: 489657589
title: "Forever-Direct String Action Gauge Ruler, Guitar Set Up Tool Kit for Electric Bass and Acoustic Guitar"
brand: "fematin"
price: "S$33"
currency: SGD
in_stock: true
reviews_count: 5
category: "Fematin"
url: https://www.desertcart.sg/products/489657589-forever-direct-string-action-gauge-ruler-guitar-set-up-tool
store_origin: SG
region: Singapore
---

# Universal fit for electric, bass, acoustic & more Multi-scale measurement (string height, saddle depth, nut slots) Precision stainless steel build Forever-Direct String Action Gauge Ruler, Guitar Set Up Tool Kit for Electric Bass and Acoustic Guitar

**Brand:** fematin
**Price:** S$33
**Availability:** ✅ In Stock

## Summary

> 🎯 Nail your perfect string action setup—every time, everywhere!

## Quick Answers

- **What is this?** Forever-Direct String Action Gauge Ruler, Guitar Set Up Tool Kit for Electric Bass and Acoustic Guitar by fematin
- **How much does it cost?** S$33 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/489657589-forever-direct-string-action-gauge-ruler-guitar-set-up-tool)

## Best For

- fematin enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Travel-Ready:** Pocket-sized design lets you carry professional setup tools wherever your gigs take you.
- • **Versatile Compatibility:** Perfectly fits electric guitars, basses, acoustics, mandolins, and banjos—one tool for all your stringed instruments.
- • **Metric & Imperial Scales:** Switch seamlessly between inch fractions, decimals, and metric units for global precision.
- • **All-in-One Measurement Tool:** Includes scales for string height, saddle slot depth, and nut saddles with clear conversion charts.
- • **Precision Engineered for Pros:** Stainless steel construction ensures durability and exact measurements every time.

## Overview

The Forever-Direct String Action Gauge Ruler is a compact, stainless steel setup tool designed for precise string height, saddle slot depth, and nut measurements across electric, bass, acoustic guitars, and other string instruments. Featuring dual metric and imperial scales plus a handy conversion chart, it’s the essential pocket-sized gauge for musicians demanding professional accuracy on the go.

## Description

Features: 1.Fit for electric guitar, Bass , acoustic guitar,mandolin,banjo,etc. 2.With conversion chart of string action at 12th fret printed on one side. 3.With scale for string height, for ridge saddle slot depth and for nuts saddles and pole pieces. 4.Made of stainless steel which is stable,durable,beautiful and widely used. 5.From inch fractions, to inch decimals, to metric in increments. Specifications: Material: Stainless Steel Color: sliver Application: electric guitar, bass , acoustic guitar etc. Unit: mm/ in Scale for string height: 0.01-0.14in / 0.25-3.50mm Scale for bridge saddle slot depth: 0-0.875in / 0-20mm Scale for nuts saddles and polepieces: 0-0.75in / 0-20mm Ruler size: 8.9 * 5.1cm / 3.5 * 2in (length * width) Ruler weight: 28g / 0.99oz Package including: 1 x String action ruler 1 x Instruction paper card

Review: Sturdy piece of metal with precisely stamped, printed gauge markings. Very impressed at the quality for the price
Review: excellent value. Metric too!

## Features

- Made of stainless steel which is stable,durable,beautiful and widely used
- With scale for string height, for ridge saddle slot depth and for nuts saddles and pole pieces
- With conversion chart of string action at 12th fret printed on one side
- Fit for electric guitar, Bass , acoustic guitar,mandolin,banjo,etc
- Convenient ,pocket-sized ruler which can take to everywhere you like

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08GKXLHY1 |
| Best Sellers Rank | 137,738 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 4,760 in Bass Guitar & Gear Accessories |
| Body Material | stainless steel |
| Colour | sliver |
| Customer Reviews | 4.5 4.5 out of 5 stars (972) |
| Date First Available | 24 Aug. 2020 |
| Item Weight | 18 g |
| Product Dimensions | 8.89 x 5.08 x 1.02 cm; 18 g |

## Images

![Forever-Direct String Action Gauge Ruler, Guitar Set Up Tool Kit for Electric Bass and Acoustic Guitar - Image 1](https://m.media-amazon.com/images/I/5193mZa93WL.jpg)
![Forever-Direct String Action Gauge Ruler, Guitar Set Up Tool Kit for Electric Bass and Acoustic Guitar - Image 2](https://m.media-amazon.com/images/I/51PaYKT-Q9L.jpg)
![Forever-Direct String Action Gauge Ruler, Guitar Set Up Tool Kit for Electric Bass and Acoustic Guitar - Image 3](https://m.media-amazon.com/images/I/614+CESdoLL.jpg)
![Forever-Direct String Action Gauge Ruler, Guitar Set Up Tool Kit for Electric Bass and Acoustic Guitar - Image 4](https://m.media-amazon.com/images/I/616yyNR6fML.jpg)
![Forever-Direct String Action Gauge Ruler, Guitar Set Up Tool Kit for Electric Bass and Acoustic Guitar - Image 5](https://m.media-amazon.com/images/I/61gZO21bORL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by C***S on 18 March 2025*

Sturdy piece of metal with precisely stamped, printed gauge markings. Very impressed at the quality for the price

### ⭐⭐⭐⭐⭐ Review
*by S***S on 8 December 2024*

excellent value. Metric too!

### ⭐⭐⭐⭐⭐ Review
*by E***A on 5 February 2023*

Excelente herramienta para guitarras Las letras y números no se borran con el tiempo eso es muy importante

## Frequently Bought Together

- String Action Gauge Ruler, Guitar Height Gauge Set Up Tool for Electric Bass and Acoustic Guitar
- D'Addario Accessories Pro-Winder Guitar String Winder, Cutter, Bridge Pin Puller - All in One Guitar Tool - Black
- Guitar Neck Rest, Guitar Neck Cradle Support Pillow String Instrument Luthier Tool for Guitar Workstation, Ukuleles, Violins, Banjos, Mandolins

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**Shop now:** [https://www.desertcart.sg/products/489657589-forever-direct-string-action-gauge-ruler-guitar-set-up-tool](https://www.desertcart.sg/products/489657589-forever-direct-string-action-gauge-ruler-guitar-set-up-tool)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-08*