|Description: Hammer, metal head with wooden handle. The hammer head is rough and uneven, especially the edge of the head. The other side of the head comes to an edge similar to that of an axe. The handle looks like it was a piece of dowelling at one time. Marked "1 3/8". |
A hammer is a tool meant to deliver an impact to an object. The most common uses are for driving nails, fitting parts, forging metal and breaking up objects. Hammers are often designed for a specific purpose, and vary widely in their shape and structure. The usual features are a handle and a head, with most of the weight in the head. The basic design is hand-operated, but there are also many mechanically operated models for heavier uses, such as steam hammers.
The hammer may be the oldest tool for which definite evidence exists. Stone hammers are known which are dated to 2,600,000 BCE.