[matheusmoreira]

Yes!! Why do these things even cost money to begin with? It's like they want people to not follow the standards.

[shapefrog]

ISO666 sets the acceptable limits on how much you should charge people to get a copy of the standards. /s

[kfprt]

I guessed they would have skipped it but no...

ISO 666:2006 Machine tools — Mounting of grinding wheels by means of hub flanges https://www.iso.org/standard/35748.html