Don McCombs
501 Club
Here’s an interesting short article on the machining of the IHC M1 Garand rifle receiver.
www.americanrifleman.org
An Official Journal Of The NRA | Making The M1 Garand At International Harvester
It took no fewer than 152 separate machining operations to produce a single M1 Garand rifle receiver, and this page from the Spring 1954 issue of International Harvester Today illustrates just how these cuts were made.