Step height for flywheel resurfacing

I’m taking a flywheel to the machine shop for resurfacing. It’s from a B18C-R, 15lb flywheel.

Anybody know the spec for the height of the step on the flywheel? I can’t seem to find this information anywhere. Some on Honda-tech have said that B-series flywheels have a .100" step height. Can anybody confirm or deny? Thanks.