A Halligan bar (also calle a Halligan tool or simply Halligan, in Australia also a Hooligan tool) is a special tool commonly used in the fire and rescue service. It was designed by and named after Hugh Halligan, a First Deputy Fire Chief in the New York City Fire Department, in 1948, based upon the well known Kelly tool. The Halligan is a multipurpose tool for prying, twisting, punching, or striking. It consists of a claw (or fork), a blade (wedge or adze), and a tapered pick, which is especially useful in quickly forcing open many types of locked doors. Either the adz end or fork end of the tool can be used to break through the latch of a swinging door by forcing the tool between the door and doorjamb and prying the two apart, striking it with another Halligan, a Denver tool or a flat-head axe. Using a K-tool and the adz end, a lock cylinder can easily be pulled. There are many other uses of the Halligan tool, including vehicle rescue and opening of walls.