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Science => Technology => Topic started by: Unbeliever on March 25, 2019, 01:59:03 pm

Title: Drilling Square Holes
Post by: Unbeliever on March 25, 2019, 01:59:03 pm

QuoteUsing a special drill and holder to drill square holes in material on a drill press.


https://www.youtube.com/watch?v=rjckF0-VeGI