Tuning Machines


Grover offers tuning machines and accessories for a variety of stringed instruments.
P-GRV-502X Tuners - Grover, Rotomatic Roto-Grip locking, 3 per side
Package of 6
Colors Available:
The newest addition to the Grover family, these locking machine heads utilize the famous 18:1 Rotomatic® design with a “thumb screw” mechanism which locks the string into place. Insert the string through the post hole, wrap around once, then lock by tightening with the thumb screw. Perfect replacement for the most standard machine heads. Includes all mounting hardware. Includes 3 treble and 3 bass.
Starting at $79.95
P-GRV-106X Tuners - Grover, Rotomatic locking, 3 per side
Package of 6
Colors Available:
The introduction of the new Grover Locking Rotomatics® gives you the ease of use provided by a standard tuner and the positive locking of our internal cam post. Simply insert the string through the string hole, pull to tension by hand and begin tuning. As you start to tune, only the locking cam in the string post turns. Once the string is locked, the string post begins to turn allowing you to bring the string to pitch. In less than one revolution of the string post, you will be in tune, to stay in tune. Gear ratio is 18 to 1.
Starting at $69.95
P-GRV-406X Tuners - Grover, Mini Lock Rotomatic, 3 per side, 18:1
Package of 6
Colors Available:
The same innovative engineering and classic design as the Original Locking Rotomatics®, but with smaller buttons for those who prefer a little more space for their fingers. Gear ratio is 18:1.
Contains 3 treble and 3 bass
Starting at $63.50
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