Grover 102C Original Rotomatic Machine Heads

Machine heads (tuner keys) are most often replaced to Upgrade to a nicer tuner or replace older worn out ones. Grover 102C is a set of Chrome Tuning keys that are influential in keeping your Guitar in tune and Sound the best.

These Grover guitar machine heads are a triumph in engineering and style, based on a tradition of manufacturing precision tuners. The housing provides a maximum bearing for worm gear and string post. Gear Ratio is 14:1. 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. Gearbox has a special lubricant for lifetime, trouble-free service. Includes 5/8' washers, bushings and wood screws.

For almost a century, Grover has been keeping the world’s finest string instruments in tune. It started in the late 1800’s when Grover first produced a few guitar and banjo machine heads, then expanded into additional production of tuners for Bass guitar, pedal steel, mandolin, dulcimer, ukulele and violin. While many changes have taken place over the years, the one constant has been that we continue to supply the Music industry with the finest products available. From the world’s first enclosed, permanently lubricated machine heads, to our newest technological breakthroughs, the one-step self lock, we are proud to be original equipment on many of the world’s finest string instruments.