Wonderful craftsmanship!Here's a picture of a B/W photo of a tool I made early in my career in aerospace. My brother designed it. The first tool like it was made of steel and started to rust because the users had acid hands. This one is made out of aluminum, steel and brass. It was used to 'coin' an electrical part to very tight tolerances. The finish is black hard anodize which, in the critical areas, was ground to size. Some of the machining challenges were the micrometer thread and knurling of the main shaft and knob seen at the top of the picture. There is a steel plunger inside the body with a carbon tip to do the coining. The blue print I was given to get the dimensions of the parts was an assembly drawing that was about 4'x5' and covered the wall behind my mill. You can just make out the name 'we' gave it, The Crusher, in the base.
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