---
product_id: 52910249
title: "Auto-Trim Tuning Machines - Locking Tuners for Guitars - 6 In Line Setup, Black"
brand: "d'addario"
price: "€ 231.80"
currency: EUR
in_stock: true
reviews_count: 12
category: "D'addario"
url: https://www.desertcart.sk/products/52910249-auto-trim-tuning-machines-locking-tuners-for-guitars-6-in
store_origin: SK
region: Slovakia
---

# Locking tuners for quick string changes Smooth sealed gear tuning Auto trims excess string Auto-Trim Tuning Machines - Locking Tuners for Guitars - 6 In Line Setup, Black

**Brand:** d'addario
**Price:** € 231.80
**Availability:** ✅ In Stock

## Summary

> 🎸 Tune smarter, play sharper — never miss a beat!

## Quick Answers

- **What is this?** Auto-Trim Tuning Machines - Locking Tuners for Guitars - 6 In Line Setup, Black by d'addario
- **How much does it cost?** € 231.80 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/52910249-auto-trim-tuning-machines-locking-tuners-for-guitars-6-in)

## Best For

- d'addario enthusiasts

## Why This Product

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

## Key Features

- • **Lock & Load Fast:** Locking mechanism speeds up string changes—perfect for on-the-go pros.
- • **Precision Gearbox:** Sealed, lubricated gears deliver smooth, stable tuning every time.
- • **Slick Black Finish:** Modern, sleek look that elevates your guitar’s style and stage presence.
- • **Cut & Tune in One Turn:** Automatically trims excess string while tuning for flawless precision.
- • **Universal Fit, Zero Hassle:** Fits most 6-in-line guitars without drilling or modifications.

## Overview

D'Addario Auto-Trim Locking Tuners combine cutting-edge auto-trim technology with a smooth, sealed gear system and a sleek black finish. Designed for fast, hassle-free string changes and universal 6-in-line guitar compatibility, these tuners ensure precise, stable tuning while adding a modern edge to your instrument.

## Description

Buy D'Addario Auto-Trim Tuning Machines - Locking Tuners for Guitars - 6 In Line Setup, Black. Free delivery and returns on eligible orders.

Review: quick to change - great ratio per turn , easy to install, superb looks and quality, and make string changing a breeze, which is the greatest thing for a live musician who just wants to take 1 guitar (easier to keep an eye on!). .. very good stability too , it cuts as you turn ,.. so if there was any slippage of strings you'd soon know about it haha! .. but they don't slip. so don't worry... there WAS an issue not long after their release , with the piston on the thinnest 'e' string not grabbing on a 9 gauge, (and possibly a 10) .. but this was addressed a couple of years ago now. .. i've fitted quite a few sets now, and ALL are still going strong, as are mine which have been in constant use for 5 years now and have been brilliant!
Review: Happy so far - Bought these for an Ibanez RG421HPAM and they fit the hole perfectly. I used a rotary tool to make small guide holes for the screws and found a very useful video on a popular video website to ensure the machine heads are perfectly aligned. The auto trim feature is nice, I did wonder what happens if it stops working but I guess you would just trim the string as normal. They are holding tune really well but to be honest the guitar held tune well before, but being lazy I wanted the locking tuners for easier string changing. I recommend them and will be getting another set for another Ibanez come pay day.

## Features

- AUTOMATICALLY CUTS EXCESS STRING WHILE TUNING: Trims excess string while tuning to ensure consistent and accurate tuning
- EASY STRING CHANGES: The locking tuners make changing strings fast and easy
- SMOOTH AND PRECISE TUNING: The sealed gear box with lubricated gears ensures smooth and precise tuning
- UNIVERSAL FIT: Fits most 6-in-line electric and acoustic guitars without drilling or modification
- ATTRACTIVE BLACK FINISH: Adds a sleek and modern look to your guitar while providing reliable tuning performance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002E2N9K |
| Back Material | Carbon Fibre |
| Best Sellers Rank | 49,634 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 2,132 in Bass Guitars & Gear 7,474 in General Music-Making Accessories |
| Body Material | steel |
| Colour | Black |
| Compatible Devices | Guitar |
| Country Produced In | china |
| Customer Reviews | 4.6 4.6 out of 5 stars (499) |
| Date First Available | 16 Aug. 2010 |
| Item Weight | 200 g |
| Item model number | PWAT-6R2 |
| Material Type | Metal |
| Product Dimensions | 10.16 x 5.08 x 15.24 cm; 200 g |
| Size | 10.2 x 5.1 x 15.2 centimetres |
| String Gauge | 0.010 - 0.046 |
| String Material | Nylon |
| Top Material | Ahorn |

## Product Details

- **Back material type:** Carbon Fibre
- **Brand:** D'Addario
- **Colour:** Black
- **Finish type:** Black
- **Instrument:** Guitar
- **Item dimensions L x W x H:** 10.2 x 5.1 x 15.2 centimetres
- **Item weight:** 0.2 Kilograms
- **Size:** 10.2 x 5.1 x 15.2 centimetres
- **String material type:** Nylon
- **Top material type:** Ahorn

## Images

![Auto-Trim Tuning Machines - Locking Tuners for Guitars - 6 In Line Setup, Black - Image 1](https://m.media-amazon.com/images/I/716RcB3qhoL.jpg)

## Questions & Answers

**Q: Are these a direct fit for an Ibanez RG?**
A: Assuming the screw holes in the back of the headstock are in the same place, (which in this case are to the left side of the bottom when looking at them from the back when installed) then yes. Otherwise you'd have to drill née piloted holes

**Q: Wouls this fit a Squier Contemporary Telecaster?**
A: Can’t say for sure but the Amazon website has very accurate measurements to help and shows them fitted on a Strat.The small rear securing screw may be in a different orientation but a fill and  re drill will fix that.
I have two sets both fitted to early Variax guitars where they are an exact replacement. They work really well but need to allow a small amount of slack before  tightening as if you ever think you might remove and replace the same strings the cut is tight to the post.

**Q: Would these fit a 3/4 guitar like a Jackson Minion?**
A: I dont think so, it is larger than a regular  tuning machine.

**Q: Would I have to drill a new hole to put these on my Jackson guitar?**
A: I have put these machine heads on two Jackson guitars and both times I have had to drill pre-start holes to install the machine heads. It might sound like a pain in the arse but they are worth it! Would recommend using a 2-3mm wood drill bit and take you time when drilling and double check the diameter of the screw suits the drill bit.

## Customer Reviews

### ⭐⭐⭐⭐⭐ quick to change
*by I***L on 10 July 2013*

great ratio per turn , easy to install, superb looks and quality, and make string changing a breeze, which is the greatest thing for a live musician who just wants to take 1 guitar (easier to keep an eye on!). .. very good stability too , it cuts as you turn ,.. so if there was any slippage of strings you'd soon know about it haha! .. but they don't slip. so don't worry... there WAS an issue not long after their release , with the piston on the thinnest 'e' string not grabbing on a 9 gauge, (and possibly a 10) .. but this was addressed a couple of years ago now. .. i've fitted quite a few sets now, and ALL are still going strong, as are mine which have been in constant use for 5 years now and have been brilliant!

### ⭐⭐⭐⭐⭐ Happy so far
*by N***N on 25 January 2023*

Bought these for an Ibanez RG421HPAM and they fit the hole perfectly. I used a rotary tool to make small guide holes for the screws and found a very useful video on a popular video website to ensure the machine heads are perfectly aligned. The auto trim feature is nice, I did wonder what happens if it stops working but I guess you would just trim the string as normal. They are holding tune really well but to be honest the guitar held tune well before, but being lazy I wanted the locking tuners for easier string changing. I recommend them and will be getting another set for another Ibanez come pay day.

### ⭐⭐⭐⭐⭐ Great locking tuners
*by A***R on 26 September 2022*

planet waves, never disappoints

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-14*