They also allow for fast and flawless string changes. Allparts TK-7722-010 Chrome Keystone Buttons for Grover. Like Schaller, the Grover name is widely recognized in the music industry. The 505FV series design allows you to upgrade your vintage Fender® tuners to a more modern style locking tuner without making ANY modifications to your guitar. In fact, some experienced guitarists look for the name on tuners when they buy a particular guitar. NEW Grover LOCKING TUNERS 3x3 for Gibson Les Paul Nickel *Keystones TK-7935-NKEY Item Description Description: Grover locking tuners, 3 x … 5.0 out of 5 stars 7. By Company Grover … FREE Shipping on orders over $25 shipped by Amazon. $19.99 $ 19. The Grover Roto Grip 502 ( is known for great, design, stability, and a guaranteed way to sharpen your Les Paul’s tuning stability. 99. Only 5 left in stock - order soon. 4.7 out of 5 stars 14. 18:1 gear ratio. Grover locking tuners possess a long and sparkling reputation in the guitar industry. Grover 502C Roto-Grip Locking Rotomatic Tuners – Best Locking Tuners for Les Paul. Get it as soon as Tue, Dec 1. Grover 502G Roto-Grip Locking Rotomatic Tuners - 3+3 Gold Locking Tuning Machine Heads for Guitar with 18:1 Gear Ratio, 3 x 3 Configuration, .391" Hole Size, and Included Mounting Hardware - Gold $ 96 .99 Allparts TK-7722-001 Nickel Keystone Buttons for Grover Tuners.