This begs the obvious question: If you can't cut it and fabricate it, what the hell do you do with it? Proteus becomes the world's first manufactured non-cuttable material
I saw that. They use ceramic orbs that are in suspension that seem to gum up the blade and cause it to dull and then they fuse together and work harden. Sort of like cutting through sand. So the material has a metal sheath and is probably cast into a shape.
In the 1960s my Great Uncle a machinist worked for a lab that received a set of the world's smallest drill bits = received from Swedish company. He was tasked with making a smaller one= Spent almost 2 months in the shop until he was able to drill a hole in their smallest bit...... and mailed it back to Sweden
