The round bezels on most older style Lucas switches have two slots, and nobody has the special tool – a bezel nut spanner - you need to take them off. Using screwdrivers and other assorted sharp implements will result in a scratched dash, which will result in colorful language. You could make these, however to be effective, they need to be made from hard steel or the teeth don’t last. These are exactly what you’d make if you had the means to do so. The set includes tools for .75" diameter and 1" diameter bezel nuts.