Need Flywheel specifications for 215MM thickness to give machine shop

[keitho64]

I am having the flywheel on my 1969 911T cut / refinished. The machine shop is asking for the specifications on the flywheel so they can assess if it can be cut. Does anyone have the specifications for a 215MM flywheel which I can share with the shop? I am assuming they want to know the minimum thickness it can be cut to.

Thanks