[rottndog]

I've never heard that, but it doesn't surprise me with all of the industrial processed involved in making a car, or at least the tooling for making cars.

[NicknamedBob]

Using industrial diamonds in milling processes makes sense for repetitive procedures, but we depend on electrochemical machining for our typically one-off productions.

Under computer control, all you have to do is input the desired dimensions.

It's easier to recycle the chemicals that it is to remake carbon crystals.