Review on 🔑 Jameco Valuepro IG-406D-2341 Key Lock Switch - Round Terminal Key, All Keyed Alike by Michael Hudson

This is a standard 3/4 inch switch with a key lock and two flat sides to prevent accidental rotation. The key can be removed in the ON and OFF positions. The barrel is cast, the thread is clean. The locking mechanism seems to be smooth. The connections are for bayonet crimp connectors. Revain offers a line of very similar keyed cylinder single pole single throw (SPST) switches. Here are the options: 1. Immediate contact. They connect two wires only when the key is turned to the ON position and have a spring to return to the OFF position. This type is widely used to open or close garage doors.2. ON/OFF switches that allow the key to be removed in the ON or OFF position. This type is used to turn on or off a device, magnetic door lock, etc. When someone needs a key to change state. This is a switch of the second type. This switch uses flat keys that slide the hidden plates slightly to keep them aligned and allow the lock to be turned. Other switches available have round keys that fit into a circular groove. Tiny notches align with the inner race and push against it, allowing the inner race to rotate. Note that there are many locks that use the same key shape, so key ambiguity security is not something you should expect. . These locks are designed to keep honest people honest and make turning the circuit on and off convenient for just the key holder. Don't just drill a 3/4 inch diameter hole. If installing in wood, use a Forstner bit to drill a clean 3/4 inch diameter hole, then insert the shank into the hole and insert two thin wood or brass spacers side by side. even. Use glue to fix the gaskets in place. All in all a very good switch.