The Officers Tool or "O-Tool" is another Fire Hooks Unlimited original design, invented by a firefighter, for firefighters. This tool meets the specifications of FDNY for their standard officer's tool, issued to each firefighting company for use by the officer at his option. It is made of high strength steel with the head welded to the shaft and forged. The shaft is covered with a non-slip gripping surface, and the shaft end of the tool is formed into a pry bar capable of slipping into tight spaces. The head of the tool has a flat driving surface, with an "A" type lock puller machined into the adz of the blade. It is used for "through-the-lock" method of forcible entry, the "A" lock puller will remove the lock cylinders from Mortise and Rim locks.