A center punch is typically used as an aid to drilling operations; a drill, when brought into contact with a flat surface, will have a tendency to wander on the surface until it gains sufficient purchase to start cutting a hole.
A hole punch (known also as a hole puncher, paper puncher, holing pincer, or rarely perforator) is a common office tool that is used to create holes in sheets of paper, often for the purpose of collecting the sheets in a binder or folder.
A leather punch is like a hole punch for making holes in leather. Some versions of this tool allow the size of the holes to be changed by selecting from various sizes of hollow cylinders which act as the cutting surface.
Also, if you watch the film once, there are lots of things that you won't get because there are punch lines in the first act, the setup to which isn't until the second act. Simon Pegg
For me, it's a bigger challenge, it's much harder to do and much more rewarding to do well, then just to think up stuff of your own, hit or miss, because you've got to see to it that you don't torpedo any of his punch lines. Humphrey Lyttelton
I confess that Roy was a little bit dictatorial in his editing and he ruined quite a number of my pictures, which he stopped doing later. He used to punch a hole through a negative. Some of them were incredibly valuable. He didn't understand at the time. Ben Shahn
I don't really know what is shocking. When you tell the story of a man who is beheaded, you have to show how they cut off his head. If you don't, it's like telling a dirty joke and leaving out the punch line. Roman Polanski
I have just come from a couple of raids, where we had a very lively time, and some of them had to pull their guns. I found it necessary to punch a few sports myself. Richard H. Davis
I think we're the only jokeless show on television. I mean really, we have no setups and no punch lines. It's not a joke show. There are funny lines and funny moments but again the comedy is born of the human experience and awkward pauses are a great part of what it is to be human. Rainn Wilson
