Punch is a device used to make an indentation or hole in a hard surface. Typically, they consist of a hard metal rod with a large flat “butt” at one end and a narrow tip at the other
When used, the narrower end is pointed against a target surface and the broad end is then struck with a hammer or mallet, causing the blunt force of the blow to be transmitted down the rod body and focused more sharply onto a small area.
Types of punches are as follows:
1. Centre punch
2.Prick punch
3.Solid punch
4.Transfer punch
5.Drive punch
6.Pin punch
7.Roll pin punch
8.Hollow punch
9.Dot punch
10.Letter stamps
11.Tablet punch