Celt (tool)

Three Olmec celts. The one in the foreground is incised with an image of an Olmec figure.
Celts from Transylvania

In archaeology, a celt /ˈsɛlt/ is a long, thin, prehistoric, stone or bronze tool similar to an adze, hoe, or axe.

A shoe-last celt was a polished stone tool used during the early European Neolithic for felling trees and woodworking.