MAIN96 RTP SLOT However, many switches indicate their status by purely mechanical means, such as by the position of a toggle handle, or the visibility of a brightly painted indicator flap. Although mechanical contact-based switches are most commonly used for general purpose electrical switching, switches that have no moving parts are generally longer-lived. Piezo and capacitance switches are the two most popular non-mechanical switch types currently available.|It's Easy to Imagine High-powered Drills