Super Rotomatics 109 Series Tuning Machines Black Chrome

The Grover Super Rotomatics 109 series tuning machines provide precision tuning for your instrument. With a 14:1 gear ratio, you can make fine adjustments to each string's pitch. Sealed lubricated gears eliminate backlash and slippage, giving you smooth, accurate tuning. A countersunk tension screw lets you adjust the turning tension to your perfect feel. You'll appreciate the lifetime of trouble-free tuning these enclosed gear boxes provide.