Achieve rock-solid tuning stability.
The Grover Rotomatics 102-18 series tuning machines provide precision tuning for your guitar. Their sealed, lubricated 18:1 gear ratio gives you the control to dial in the perfect pitch. The oversized housing and 25/64" post hole accommodate heavier gauge strings, while the longer 28.2 mm post gives you more winding room. You'll appreciate the smooth tuning and solid, backlash-free feel. Adjust the tension to your liking with the countersunk tension screw. Whether you're performing intricate jazz passages or wailing blues riffs, the 102-18 series keeps your guitar in tune so you can focus on your playing.