We have a few prints to quote and I have no idea what tolerances they're calling out. All I see is "h6, h7, h8, F9, f7" and things like that. What do they mean? Is there a chart somewhere that I can reference?
Thanks, Sean

Those tolerances are case sensitive (ID/OD).
They are all available in Machinery's Handbook.
Awhile back someone posted this http://www.roymech.co.uk/Useful_Tables/ISO_Tolerances/ISO_LIMITS.htm link which may be of use.
The handbook is much better and every machinist type tradesman has one.

Thanks, I didn't think to look in there. I'll have to find mine and knock the dust off of it. lol

This chart is also pretty good.

regards