Here’s the job I was working on a long time ago – a massive granite beam held in place with M20 tie-rods in an anchor plate.  The clearance holes in the beam were 30mm dia, so lots of room.
 
So I did the drawing using classical Tolerancing, which should have been fine. A 10-thou tolerance should be more than needed to clear in case the holes weren’t perfectly straight.

the ProjectSchema software is now available and you can see it here on the MindJet website.
Also - Maps ForThat website.
This software allows engineers to open any SolidWorks assembly as a MindJet MindMap.
Configure your custom properties to appear in the map, including task information which will make available a Gantt Chart. Search, sort, rearrange and filter your large, slow assemblies the easy, fast way - outside of SolidWorks.