The adze and pick end of a Halligan
A Halligan tool on display at the NYC Fire Museum (middle), next to the earlier Kelly tool (2nd from left) on which it was based
A Halligan and flat head axe. When joined they are known as "the irons"
Adze
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An adze or adz is an ancient and versatile cutting tool similar to an axe but with the cutting edge perpendicular to the handle rather than parallel. Adzes have been used since the Stone Age. They are
Halligan bar
…earlier 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 breaching many types of locked doors. One variant of the Halligan has a heavy sliding collar…
Native Alaskan boat builder using an adze c.1910
Contemporary stone adzes from New Guinea
19th century catalogue showing various adze and axe heads
Micronesian of Tobi, Palau, making a paddle for his wa with an adze