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General tolerances note in drawing titleblock

Question asked by Atanas Kanov on May 1, 2015
Latest reply on May 1, 2015 by Jeff Holliday

My question is in a way continuation of the discussion in this thread:


I am starting a new discussion because I am not willing to further hijack the other thread.


Our drawings are in mm. Currently we have this table:


Many other companies do it the same way but we have encountered problems now and then because of it.


We are considering replacing the table with a note like this:


Unless otherwise specified tolerances are: H11-h11-JS11


With a previous employer we were making all our parts in-house and it was understood that FOR ALL FREE DIMENSIONS:

external dimensions will be machined at nominal or - and  all internal dimensions will be at nominal or +. (We did not even have it on the title block)


It worked great for us- if I want a grove for a flat bar part for example I did not have to worry with tolerancing as they would oversize it and the flat bar will be undersized. (or shaft and bore)


My question is: How many of you have similar approach and would you recommend different note?