Milling glass with carbide

[Larry$]

Watched Stefan's latest video where he uses a carbide end mill to slot glass. Also drilled glass with a carbide drill. Said he found that information on the NASA web site. I haven't tried using the NASA sight yet but apparently it is free to use.
I would have never thought it could be done. I've used diamond grit tools on glass. Have even gotten away with it on tempered. But a carbide end mill just seems so counter intuitive. Mind you the depth of cut was very shallow. Have you tried it?

 

[sycle1]

Yeah I watched in amazement.
I didn't think it would work, I can't say I would ever need to machine glass.
However now I know it can be done.

 

[Lo-Fi]

I was amazed too. There's also a video of his where he's turning carbide, which seemed just as wrong.