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Original Rotomatics®
(102 Series)

These guitar machines are a triumph in engineering and styling. The housing provides a maximum bearing for worm, gear and string post. 14:1 gear ratio.


Super Rotomatics®
(109 Series)

The Super Rotomatic® has a 14:1 gear ratio. The 3 step button gives this machine a distinctive look and the sealed-in lubrication assures smooth gear-and-worm movement for the life of the machine.


Mid-Size Rotomatics®
(305 Series)

The Mid-Size Series is made with the same quality as the other Rotomatic® models. Slightly larger than the Mini Rotomatics®. 18:1 gear ratio.


Mini Rotomatics®
(205 Series)

Totally professional in design and performance. Small, lightweight, this precision-made machine fits guitar headpieces that will not take full-size machines. 14:1 gear ratio.


Mini Locking Rotomatics®
(406 Series)

The same innovative engineering and classic design as the Original Locking Rotomatics®, but with smaller buttons for 6-in-line guitars. Gear ratio 18:1.

Roto-Grip Locking Rotomatics® (505FV Series)

The 505FV series design allows you to upgrade your vintage Fender® tuners to a more modern style locking tuner without making ANY modifications to your guitar. 18:1 gear ratio.

(150 Series)

This re-introduction of the Imperial is an exact reproduction of the originals 16:1 gear ratio.

Deluxe Guitar Machines
(133 Series)

Mechanically engineered to the most precise standards of excellence, with the classic look of vintage styling, Grover Deluxe machine heads are a timeless achievement for guitar tuning. 15:1 gear ratio.

Vintage Locking (533 Series)

Grover’s Vintage 533 locking series come with a  “thumb screw” mechanism, which locks the string into place. 15:1 gear ratio.

(135 Series)

Our new Vintage machine uses a die-cast, two-piece housing for additional strength and precision.14:1 gear ratio.


Vintage Deluxe
(136 Series)

Like our Vintage machine heads, the 136 uses the same sturdy construction of our die-cast, two-piece housing. New for the 136 Series is the classic rounded button made popular in the 1950’s. 14:1 gear ratio.

Vintage (138 Series)

The Grover® deluxe machine heads are mounted three to a plate for the vintage look that has been popular for decades. 14:1 gear ratio.


Sta-Tite™ (97 Series)

The Original Grover® Sta-Tite™ machine head, identifiable by the classic Sta-Tite™ styling and original butter bean button, returns with the Grover® name. 14:1 gear ratio.


Sta-Tite™ (97-18 Series)

The Original Grover® Sta-Tite™ machine head now available with an 18:1 gear ratio for more precise tuning. Still with the classic styling and butter bean button of the original Grover® Sta-Tite™

Sta-Tite™ (98 Series)

Beautiful machine heads with the classic round button, the 98 Series provides smooth, sure tuning. 14:1 gear ratio.


Vintage Bass Machines (142 Series)

Precision and durability with classic styling make this bass machine heads ideal for manufacturing or upgrading instruments. 22:1 gear ratio.

Sta-Tite™ Mandolin Machines (304 Series)

Precise engineering assures sure, smooth tuning. One-piece backplates. Brass gears mean perfect meshing. Heavily plated. Screws and bushings included. 14:1 gear ratio.

409 Series “A” Style

Our professional “A” Style model mandolin machine heads are the latest in technology. The worm to gear ratio is 18:1.

409 Series “F” Style

Our professional “F” Style model mandolin machine heads are the latest in technology. The worm to gear ratio is 18:1.