Named for the distinctive grooves on the cast gear housings, these are improved reproductions of the deluxe tuners used on many Gibson® guitars. They feature nylon worm bearings for smooth operation, 15:1 gear ratio for precise tuning, and maintenance-free sealed lubrication.
Sets of 6 (3-left/3-right), with screws and press-fit bushings included. 11/32"-diameter pegholes required. Available with plastic or metal keystone knobs.