Grover Super Rotomatics Machineheads

The Super Rotomatics (109-18 Series) 3-step button gives these machine heads a distinctive look and sets them apart from other Rotomatics. The 18:1 ratio provides for finer tuning and greater stability. The sealed-in lubrication assures smooth gear-and-worm movement for the life ...The Super Rotomatics (109-18 Series) 3-step button gives these machine heads a distinctive look and sets them apart from other Rotomatics.

The 18:1 ratio provides for finer tuning and greater stability. The sealed-in lubrication assures smooth gear-and-worm movement for the life of the machine.The 109-18 Series 3-step button gives these machine heads a distinctive look and sets them apart from other Rotomatics. The housing provides a maximum bearing for worm, gear and string post.

The 18:1 ratio provides for finer tuning and greater stability. The finer gears provide smoother tuning and a higher degree of backlash elimination. Countersunk tension screw permits player to regulate turning tension to any degree.

Enclosed gear box with special lubricant for a lifetime of trouble-free service.