Locking tuners are a type of tuning machine that are designed to improve tuning stability and make string changes faster. They work just like regular tuning machines but feature a pin or retaining mechanism that clamps the strings in place, preventing them from slipping when you’re playing. By “locking” the strings in place, locking tuners actually remove the need to wrap the strings around the tuner posts. Locking tuners are usually adjusted by tightening or loosening a knob on the back of the headstock.

The benefits of locking tuners include improved tuning stability, especially on tremolo-equipped guitars, such as a Fender Stratocaster or PRS Custom 24, where the winding on the string posts loosens as the tension in the strings fluctuates. Locking tuners also make string changes faster and easier, as they eliminate the need to wrap the strings around the tuner posts. However, they can alter the appearance of the guitar, and they may not be necessary for all players.

In summary, locking tuners are a type of tuning machine that lock the strings in place to prevent them from slipping, improving tuning stability and making string changes faster. They are adjusted by tightening or loosening a knob on the back of the headstock and are especially useful on tremolo-equipped guitars. While they offer benefits, they may not be necessary for all players and can alter the appearance of the guitar.