Allparts TK-7935 Grover Nickel Locking Tuners 3x3, Set of 6

Roto - Grip Locking Rotomatics® feature the well - known 18:1 Rotomatics® design. They use a 'thumb screw' mechanism to securely lock the string in place. Simply insert the string through the post hole, wrap it around once, and then tighten the thumbscrew to lock. These are an ideal replacement for most standard machine heads. The set comes with all the necessary mounting hardware. Key features include a set of 6 tuners, an 18:1 ratio, and a stylish nickel finish.

Using these tuners is easy. First, insert the string through the post hole on the tuner. Then, wrap the string around the post once. After that, use the thumbscrew to tighten and lock the string in place. When installing, make sure to use the included mounting hardware. As for maintenance, keep the tuners clean. You can use a soft cloth to wipe them down from time to time. Avoid using harsh chemicals as they might damage the nickel finish. If you notice any issues like the string not locking properly or the tuner not turning smoothly, check for any debris or loose parts. If the problem persists, it might be a good idea to consult a professional.