Guitar Tuners Vintage Style Chrome Sta-Tite Vintage Open Gear V97C Grover Grover Sta-Tite 3+3 tuning keys in chrome finish. The classic open-gear, butter bean button, and 14:1 ratio makes this a favorite for both acoustic and retro electric guitars. Includes press-in bushings and mounting screws. Requires 11/32"(8.75mm) peghead holes. Mounting holes on each tuner are spaced 1"(25.4mm) apart. Features Grover's lifetime guarantee. Part V97C