Cold Chisels
A cold chisel is a metalwork tool which is struck with a hammer. It has a tip which has been ground to a precise shape and been specially hardened so that it stays sharp longer.
Chiselling metal is much tougher than wood but the idea is much the same. The metal to be chiselled is held in a vice securely with the line to be cut just above the jaws, the chisel is then struck with a heavy hammer.
If thicker material is to be chiselled it it often 'chain drilled' along the line to reduce the amount of chiselling required
In this process the metal is not heated, hence the name – Cold Chisel.
