Grover Vintage Maching Heads 3 A-Side Our Vintage machine uses a die-cast, two-piece housing for additional strength and precision. The unique bearing surface in the housing provides a rigid string post enhancing the alignment of the gear and worm. Read more
Grover Rotomatics Machine Heads 3 A-Side These guitar machines are a triumph in engineering and styling. The housing provides a maximum bearing for worm, gear and string post. Gear ratio is 14 to 1. Worm and gear are precision-cut for perfect meshing. Read more