12-09-2014, 12:59 PM
It's the tolerance. It can be larger (the +) by up to .0003, but might be only as large as .0001 more. So, the dowel will come to you at .2501 (smallest) to .2503 (largest) or anywhere in between.
This dowel is meant to be tightly fitting (I would classify this as a press fit) in an accurately drilled 1/4" hole.
This dowel is meant to be tightly fitting (I would classify this as a press fit) in an accurately drilled 1/4" hole.
Full of ideas, but slow to produce parts