Review on Enhance Security with the Jonard SK-51632 Security Key Insert by Radney Taala

It has two different sized ends, both hexagonal in 'security' or 'tamper evident' design - like a hex key but with a hole in the middle. For locks/bolts that have a hexagonal recess with a pin in the middle. Mainly used for telecom cabinets. Fits onto the end of a can opener or other 5/16 hex wrench such as a B. a spark plug socket. Useful enough, but you can't squeeze the can key with your bare hands, so I prefer to just use the 5/16" security hex key I bought in another set that has more key sizes FOR LESS MONEY : Bondhus 48332 L-shaped anti-tamper hex keys, set of 8 pcs.