There’s a spiral of 50+ spinning blades that press on the rock with tonnes of force, chipping as they go. Video if you’d like:
So what part actually grinds? Is it just the slots at the very edge?
Boring machines are so interesting and yet somehow kinda terrifying
Amazing! The part in the picture doesn't look that powerful, but all the machinery behind it shows just how powerful it is.
Ahhh yeah, I think I have an old rusty one of these lying around in my shed somewhere. A real work horse this one.
Interesting watch, thanks!
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