If you are looking for a physical object based on the code , it is most likely a precision shaft or a shoulder on a mechanical component that features a specific Undercut Type E, Width 0.6mm, Depth 0.2mm , ground to a finish of Ra 0.8 or finer (typical for DIN 509 applications).
: Specifies an undercut for workpieces with a planar surface and a cylindrical surface (typically a shaft shoulder) where no high demands are placed on the fatigue strength of the shoulder. ) of the undercut is 0.6 mm. ) of the undercut is 0.2 mm. Application & Context Manufacturing Use din 509e06x02 exclusive
Before diving into the "E06X02" modifier, we must revisit the parent standard: . Officially part of the DIN 50900 series (and its successors integrated into ISO 2081 and ISO 4527), this German Institute for Standardization (DIN) regulation governs electroplated coatings —specifically zinc and zinc-alloy coatings on iron and steel parts. If you are looking for a physical object