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Universal Grover Mid-size Rotomatics Machineheads ~ 6 In-line ~ 12-string ~ Nickel - Limited Release [XgBAztxs]

$40.99 $131.99 -69%

Grover Mid-Size Rotomatics Machineheads The Grover Mid-Size Rotomatics Machineheads are a top-tier choice for 12-string guitars, offering exceptional tuning stability and precision. Designed with the same meticulous quality as all Rotomatic® models,

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Universal Grover Mid-size Rotomatics Machineheads ~ 6 In-line ~ 12-string ~ Nickel - Limited Release [XgBAztxs]

Grover Mid-Size Rotomatics Machineheads

The Grover Mid-Size Rotomatics Machineheads are a top-tier choice for 12-string guitars, offering exceptional tuning stability and precision. Designed with the same meticulous quality as all Rotomatic® models, these machine heads are a perfect blend of innovation and craftsmanship. Slightly larger than the Mini Rotomatics®, the mid-size series boasts an 18:1 gear ratio, ensuring smoother and more precise tuning. This compact design is ideal for smaller and in-line headstocks, making it a versatile addition to any guitar.

Key Features and Specifications

The 305 Series Grover Mid-Size Rotomatics Machineheads come equipped with a host of features that set them apart from the competition. Here are some of the standout aspects:
  • Sealed-in, Lubricated Gears: These gears are designed to keep out dust and debris, ensuring smooth operation and long-lasting durability.
  • 18:1 Gear Ratio: This high gear ratio provides an exceptionally smooth and precise tuning experience, making it easier to maintain pitch accuracy.
Each machine head is tailored to fit a 25/64” post hole, with a post length of 27.5mm. The maximum string gauge supported is .064”, making them suitable for a wide range of string tensions. The hardware included in the package ensures a seamless installation, complete with bushings, washers, and screws. These machine heads are a drop-in replacement for the 406 Series, simplifying the upgrade process.

Perfect for a Variety of Guitars

Whether you're a professional musician or a hobbyist, the Grover Mid-Size Rotomatics Machineheads are an excellent choice for your guitar. Their robust construction and precise tuning capabilities make them ideal for both acoustic and electric guitars, especially those with in-line headstocks. The inclusion of all necessary mounting hardware and the famous Grover lifetime guarantee ensures that you're investing in a product that you can rely on for years to come. Upgrade your guitar's tuning performance with the trusted quality of Grover Mid-Size Rotomatics Machineheads.

What Our Customers Say

January 26, 2026

Absolutely no complaints!

A premium product without the price.

- Abel Z..

January 26, 2026

Absolutely no complaints!

Sturdy, well-made, and stylish.

- Chloe D..

January 26, 2026

Absolutely no complaints!

Very well made and reliable.

- Bruce Z..

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