Tolerance for diameters
Non plated through holes
PNon-plated through holes refer to drilled holes required for positioning, for automated assembly of items and for testers, close-tolerance drilling and drilling to assemble the printed circuit and the items with normal tolerance.
Sizing of positioning holes is recorded in a particular way and these holes must be drilled at the same time as the plated through holes.
For all other non-plated through holes that are not specifically marked, average DIN 7168 tolerance applies.
Plated through holes
Unless there is a special indication in the order, the following tolerances apply: