It is highly probable that you are referring to either:
The Penny Pax training program is designed to equip individuals with the necessary skills and knowledge to excel in their roles. This report provides an overview of the training program, its objectives, methodology, and outcomes. penny pax training of o
Take a standard U.S. penny (pre-1982 copper is best, but any works). Attach it to a long piece of stiff wire or an old flat car with a small alligator clip. Drag the penny along the center rail and both outer rails at slow speed. Where it snags or sparks, you have a burr or raised joiner. File flush with a cheap nail file (not a powered grinder – too aggressive). This costs $0.01. It is highly probable that you are referring
For more detailed technical information or professional credits, you can view the entry on In Service (TV Episode 2015) - Full cast & crew - IMDb penny (pre-1982 copper is best, but any works)