Die Filer from Flat Stock
If you’re here from the video, as promised, here is a link to the magazine article and a stock list.
Internet Archive: Popular Mechanics - October 1947, p 226 (or get a copy from your local library)
Stock list
10 gauge x 8” x 8” steel plate
1.25" (D) x 1” Brass Round Bar
0.75" (D) x 12” Brass Round Bar
0.5625" (D) x 12” Carbon Steel Round Bar
1" (D) x 6” Carbon Steel Round Bar
1.75" (D) x 3” Carbon Steel Round Bar
0.1875" x 1.25" x 24” Carbon Steel Rectangle Bar
1.5" x 1.5" x 0.125" x 12” Carbon Steel Angle
1.5" x 1.5” x 7” Cold Roll Square Bar