nawiercanie spot drilling

Creator:	An-Ja
Language pair:	Polish to English
Discipline:	-
Definition / notes:	The purpose of spot drilling is to drill a hole that will act as a guide for drilling the final hole. The hole is only drilled part way into the workpiece because it is only used to guide the beginning of the next drilling process.
URL:	http://www.proz.com/kudoz/polish_to_english/metallurgy_casting/6277213-nawiercanie_please_read_context.html