- a small steel tool with a conical tip used to punch a small indentation at the location of the centre of a hole to be drilled
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Examples from the Web for centre punch
Centre-punch: You will find the centre-punch a most useful tool to have on hand.
Punch a hole with the eye-punch where the centre-punch was made.
The centre-punch is made like this one, but the end is ground to a point.
A large piece of work of this kind would be marked off with lines defined by centre-punch dots, as shown.
Usually a centre-punch mark, as at e, Fig. 1731, is made on the drill and another on the collar as at f.