CNC machining Inconel - GIF

CNC machining Inconel, an oxidation- and corrosion-resistant superalloy.

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Previously:

https://www.homemadetools.net/forum/...586#post128288
https://www.homemadetools.net/forum/...ming-gif-82864
https://www.homemadetools.net/forum/...814#post156191

What is that milling bit made of?

Probably ceramic, I'm watching this pvd insert, impressive!
https://www.iscar.com/Products.aspx/...ProductId/5392

That's incredible. I've never machined inconel before. Do you need to go this fast for some reason?