metal object usually a long, thin shape teeth-like ridges and grooves along one side a head with one or more notches a shaft that tapers to a point at the end a loop or hole at the top of the shaft
key which has metal object key which has usually a long, thin shape key which has teeth-like ridges and grooves along one side key which is a head with one or more notches key which is a shaft that tapers to a point at the end key which is a loop or hole at the top of the shaft