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The Grover Super Rotomatics 109-18 series tuning machines provide precision tuning for your instrument. With an 18:1 gear ratio, you'll achieve smooth, stable tuning that holds pitch. The sealed gearbox protects the lubricated gears for a lifetime of reliable performance. The 25/64" post hole and 28.2 mm post length accommodate most strings. Replace your existing tuners with the drop-in compatible 109-18 series for fast installation and upgraded performance. Experience the difference in tuning feel and accuracy that comes with gear ratios and design optimized for serious musicians.

GROVER Super Rotomatics With 18:1 Gear Ratio 109-18 Series Tuning Machines Chrome

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