Switchcraft 1/4″ Stereo Jack as used on many well known guitars and basses.
A stereo jack is often used for splitting the guitar’s signal, or for turning the battery on and off in active electronics.
The jack socket is one of the most important electronic components of a quality guitar. Switchcraft jacks make a great replacement for low-quality, worn out and crackly jacks. They are also perfect for new custom builds.