Springloaded Center Punch : A device, normally used by machinists, that has been adapted for fire service use as a tool to remove tempered glass from automobiles during rescue
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}