Grover 106C Locking Rotomatics Chrome Machine Heads

The Locking Rotomatics® (106 Series) are innovations in engineering and design. These locking machine heads give you the ease of use provided by a Rotomatic® style machine head and the positive locking of our internal cam post. With 18:1 gear ratio.

The 106 Series are innovations in engineering and design. These locking machine heads give you the ease of use provided by a Rotomatic® style machine head 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 then one revolution of the string post, you will be in tune and stay in tune. Gear ratio is 18:1.