Axe today, they were once an integral part of a joiner and carpenter's tool kit, not just a tool for use in forestry. A tool of similar origin is the billhook. Most modern axes have steel heads and wooden handles, typically hickory in the US and ash in Europe and Asia, although plastic or fibreglass handles are also common. Modern axes are specialised by use, size and form. Hafted axes with short handles designed for use with one hand are often called hand axes but the term hand axe refers to axes without handles as well. Hatchets tend to be small
Entrenching tool entrenching tools became extremely important with the introduction of trench warfare. Entrenching tools designed for the individual infantryman soon appeared with short straight handles, T-handles, D-handles, and other designs. The British entrenching tool of this period was a two part design, with a metal head and a wooden handle, the metal head consisted of an adze/spade blade and a pick spike, used alone the head could be used as a spade with the pick spike serving as a handle. Between the blade and the spike was a ring into which the handle could be inserted at right angles to the