Black Grover Rotomatic machine heads.

These guitar machines are a triumph in engineering and style. The housing provides a maximum bearing for worm gear and string post. Worm and gear are precision-cut for perfect meshing. This eliminates backlash and slippage. Countersunk tension screw permits players to regulate turning tension to any degree. The 18:1 ratio provides for finer tuning and greater stability. Gear box has a special lubricant for lifetime, trouble-free service.

-Ratio: 18:1

-Color: Black

-Hole required: 10mm

-Includes black washers, screws, nuts and mounting threads

-Available models: Individual and 3R3L