Automatic Center Punch

Automatic Center Punch: Manually powered punch used for marking locations on metal for accurate drilling of holes.
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Bail: A finding, connected to pendants or stones worn as pendants to accommodate a chain, cord or thong.

center punch - A steel punch that has a v-shaped tip used to mark a point on metal and for starting a hole for drilling. An automatic center punch is spring loaded thus marking the metal without the use of a hammer or mallet.

See also: Channel, Glass, Dial, Case, Automatic