WD Push-Push Potentiometer
If you want to wire your guitar for coil-split, series/parallel or other wiring, this is for you. This features convenient spring loaded PUSH-PUSH action that locks into position. No more akward pulling of knob to coil-split. Just push and it will switch, and push again to switch to another position. This kind of switch is used in new Gibson Standard/Hi-P models, Music Man Luke III and JP BFR and many other modern guitars.
500k is best used with humbuckers and P90s, and can be used for both volume and tone applications. Also available in 250K for Strat and Tele.