This is about machining, but with equipment and technology which is unlikely to be seen in the home shop. It relates to small scale sliding head lathes (modern-day equivalent of 'screw machines'). I thought is was fascinating technology. They are both manufacturer's promos, but are short (3+ mins.):
Showing LFV (low frequency vibration) turning for chip breaking plus drilling a 1mm hole 30 mm deep with through coolant.
If you want a clearer animated explanation of LFV turning,then look at this:
And NO, I don't sell any of this stuff, so I don't think I'm breaking the rules on here.