Shove knife

A shove knife is a forcible entry tool used mainly by firefighters. Generally, they will consist of a small semi rigid piece of 10 gauge steel with an indented end. In order to use the device, it is inserted between a door and the door frame, above the spring latch on outwardly-swinging doors equipped with key-in-the-knob locks. The tool is pulled down and outward, releasing the locking mechanism.