Grover Announces Roto-Grip Locking Super Rotomatic Tuners

These locking machine heads use a 3-step button, 18:1 Rotomatic design, and a “thumb screw” mechanism.

Cleveland, OH (March 2, 2021) -- Adding to the company’s line of quality guitar accessories Grover Musical Products is proud to introduce the Roto-Grip Locking Super Rotomatics (509 Series).

The newest addition to the Grover family, these locking machine heads with a 3-step button gives this machine a distinctive look and utilizes 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.

Available Finishes:

  • Chrome
  • Black Chrome
  • Gold

For more information:
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