The HONEYWELL part 12TW13-3D is a MICRO SWITCHâ„¢ Miniature Toggle Switch from the TW Series. This switch is a Double Pole Double Throw (DPDT) 2 Position switch, meaning it has two separate circuits that can be connected to two different loads. It features solder terminals for easy installation and a 15/32 inch bushing. The switch also has a unique shorter (21 mm) mushroom-style locking lever, which means it can be locked out of the center position. This provides added security and prevents accidental toggling of the switch. Overall, the HONEYWELL part 12TW13-3D is a reliable and versatile toggle switch that is suitable for a wide range of applications where a compact and secure switch is required.