Celts were generally utilitarian hand tools.  They were made in various shapes and sizes for specialized tasks.  Celts were used as axes, adzes, and chisels.  They were fastened to wooden handles and used to fell trees and shape wood.  Smaller celts may have been attached to war clubs.  Celts were sometimes made for ritual or ceremonial use.  They were made from finer materials and show a high level of crafsmanship.