Thanks Boss! Looks like 'Ham' Standards to me. Notice the grind patterns.....that's all free hand grinding by a Human, no automated process,,,,even new, the blanks(injected molded i think)have to be deburred & surfaced by hand operations. Procedure is same in propeller overhau, the blades must be ground to pull out corrosion & dress up flaws like stone damage.I thought that I would post this up for jimiView attachment 509160
Looks like you nailed it...again.Thanks Boss! Looks like 'Ham' Standards to me. Notice the grind patterns.....
Looks like you nailed it...again.http://www.shorpy.com/node/18999?size=_original#caption