'Center punch' definitions:
Definition of 'center punch'
(from WordNet)
noun
A tool with a conical point that is used to make indentations in metal (especially to mark points for drilling)
verb
Make a small hole in something as a guide for a drill
Definition of 'Center punch'
From: GCIDE
- Center punch \Center punch\, or Centre punch \Centre punch\ (Mech.) (a) A punch for making indentations or dots in a piece of work, as for suspension between lathe centers, etc. (b) A punch for punching holes in sheet metal, having a small conical center to insure correct locating. [Webster 1913 Suppl.] Center seal