We have been dimensioning our blind holes from the start surface to
the drill point. This is being done at the request of our machine
shop. I was told that the reason is, the cnc operators want be be able
to compare the depth readout on their cnc's with the value in the
Every standard I have seen calls for holes to be dimensioned to their
full diameter depth.
Has anyone else dealt with this issue? Should the cnc operators really
need the bind holes dimensioned to the drill point? We are going thru
our company standards and I would like to know if we should join the
99% of companies that dimension to the full diameter depth or not.
I need a further explaination of the pros and cons of this practice so
we can decide which way to go.
- posted 14 years ago