---
product_id: 312826404
title: "406C Rotomatic Mini 3 per Side Self Locking Machine Heads, Chrome"
brand: "grover"
price: "$300"
currency: NZD
in_stock: true
reviews_count: 6
category: "Grover"
url: https://www.desertcart.nz/products/312826404-406c-rotomatic-mini-3-per-side-self-locking-machine-heads
store_origin: NZ
region: New Zealand
---

# Self-locking mechanism Quick string change 18:1 precise gear ratio 406C Rotomatic Mini 3 per Side Self Locking Machine Heads, Chrome

**Brand:** grover
**Price:** $300
**Availability:** ✅ In Stock

## Summary

> 🎸 Lock in your sound, tune like a pro, and never miss a beat!

## Quick Answers

- **What is this?** 406C Rotomatic Mini 3 per Side Self Locking Machine Heads, Chrome by grover
- **How much does it cost?** $300 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/312826404-406c-rotomatic-mini-3-per-side-self-locking-machine-heads)

## Best For

- grover enthusiasts

## Why This Product

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

## Key Features

- • **Trusted Legacy:** Backed by Grover’s lifetime warranty and nearly a century of tuning expertise.
- • **Sleek Chrome Finish:** Polished chrome not only looks premium but resists wear for long-lasting shine.
- • **Speedy String Swaps:** Quick string change feature saves you time and hassle during restringing sessions.
- • **Effortless Stability:** Self-locking design ensures your guitar stays perfectly in tune, no slip-ups.
- • **Precision Tuning Mastery:** 18:1 gear ratio delivers ultra-fine tuning control for professional-grade sound.

## Overview

The Grover 406C Rotomatic Mini machine heads feature a self-locking mechanism and an 18:1 gear ratio for precise tuning. Designed with a quick string change system and finished in durable chrome, these tuners offer professional reliability and aesthetic appeal. Trusted by musicians worldwide and backed by a lifetime warranty, they ensure stable, smooth tuning for your guitar.

## Description

Grover/Trophy Musical Products was founded in 1922 as a wholesaler of musical instruments and accessories under the name Grossman Music Corporation. We began manufacturing in the 1940s and eventually exited the wholesale business entirely to concentrate on manufacturing. We are best known for our full range of Grover® guitar tuning keys, including the popular ROTOMATIC® series for guitars along with tuning keys for basses, mandolins, banjos and ukuleles; as well as bridges, cables, the Ultra CapoTM and other fretted string instrument accessories

Review: Highly recommended!!! - I highly recommend this product. The tuning became more stable in my LTD EC-256 and there’s no need to bore new screw holes… perfect fit!!!
Review: These are excellent. Got em as replacements for the standard Marvel ones on my Gretsch 5622 - smooth gearing, the plating is very good and looks like it will stand up long term. Easy to use also - a real time saver when r re-stringing.

## Features

- World's finest machine heads
- Locks Automatically
- Quick String Change
- 18:1 Gear Ratio for Precise Tuning
- Lifetime Warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0007Y3XGW |
| Body Material | Chrome |
| Color Name | Chrome |
| Customer Reviews | 4.7 4.7 out of 5 stars (589) |
| Date First Available | 1 January 2024 |
| Item Weight | 259 g |
| Item model number | 406C |
| Material Type | Chrome |
| Product Dimensions | 22.86 x 11.94 x 4.7 cm; 258.55 g |
| Size | Mini Locking Rotomatic Tuners |

## Images

![406C Rotomatic Mini 3 per Side Self Locking Machine Heads, Chrome - Image 1](https://m.media-amazon.com/images/I/612LVJ7R2lL.jpg)

## Questions & Answers

**Q: Will these fit a Taylor 210ce?**
A: They will fit fine, and if you want to maintain the stock appearance of the Taylor 210ce, save the knobs and screws so you can put them on the new Rotomatics. I did that with a PRS SE Custom 24 and a Michael Kelly, Les Paul style guitar that I upgraded.

**Q: Fit a Gretsch g5222 ?**
A: Yes!

**Q: Can you purchase larger tuning keys for the tuner?**
A: Yes type in the search for “Grover tuner buttons”
The regular rotomatic buttons are larger and the hipshot buttons should fit as well

**Q: will these tuners fit a 1981 les paul fire brand guitar ?**
A: They would work, but Les Paul guitars use Kluson tuners so the mounting holes on the Grovers will not match the original holes, and probably won't completely cover the existing holes. Also the holes in the head-stock may be a different diameter. You would be better off replacing the original tuners with these: Kluson Revolution 3X3 Locking Tuners, Keystone Buttons - NICKEL, for sale on Amazon for $88.79 with Perloid buttons which are probably like the originals, and will install without modifications. I used The Kluson locking tuners on an Oscar Schmidt OE35 which is a Gibson ES 335 clone and they work perfectly.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Highly recommended!!!
*by B***N on 30 July 2023*

I highly recommend this product. The tuning became more stable in my LTD EC-256 and there’s no need to bore new screw holes… perfect fit!!!

### ⭐⭐⭐⭐⭐ Review
*by M***S on 7 July 2024*

These are excellent. Got em as replacements for the standard Marvel ones on my Gretsch 5622 - smooth gearing, the plating is very good and looks like it will stand up long term. Easy to use also - a real time saver when r re-stringing.

### ⭐⭐⭐⭐⭐ Review
*by W***R on 24 October 2022*

Passen perfekt auf die Guild 1512, deren Bohrungen in der Kopfplatte leider nicht 10 mm, sondern ein bisschen kleiner sind (US-Maß halt). Verglichen mit den wackeligen Originalen ist die Qualität der Grover-Tuner so überragend besser, dass die Locking-Funktion fast schon nebensächlich wirkt. Stimmen macht endlich Spaß, und wir haben ja eine 12-Saiten-Gitarre, weil wir gerne und viel stimmen :-D Die Locking-Funktion wirkt sich dann beim nächsten Saitenwechsel aus, und der ist bei 12-Saiten-Gitarren mit herkömmlichen (non-locking) Tunern bekanntlich besonders aufwändig. War erst skeptisch, was die Rotomatic-Funktion angeht (Verriegeln und Stimmen über den Wirbel, keine eine separate Schraube), aber wenn man es einmal durchblickt hat, ist es sogar einfacher. Klar sind sie nicht billig, vor allem weil man für die 12-Saiten-Gitarre zwei Sätze braucht, aber es ist eine riesige Aufwertung. Wer einmal Locking-Tuner hatte, will nie mehr eine Gitarre ohne.

## Frequently Bought Together

- Grover 406C Rotomatic Mini 3 per Side Self Locking Machine Heads, Chrome
- Grover SPERZEL LOCKING 3 ON A SIDE KIGH POLISHED NICKLE PLATED WITH MOUNTING PARTS Machine Heads (102-18C)
- Ernie Ball Regular Slinky Nickel Wound Electric Guitar Strings, 10-46 Gauge (P02221)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-08*