prEN ISO 18388 rev

Technical product documentation (TPD) — Relief grooves — Types and dimensioning

General information

30.99   CD approved for registration as DIS   Oct 9, 2026

CEN

CEN/BT

European Norm

Scope

ISO 18388:2016 specifies a series of relief grooves for shafts and holes, intended for general use in mechanical engineering.
It also intends to avoid unnecessary multiplicity of tools by a restricted selection of groove-types and dimensional versions.
NOTE The shape and the dimensions of the relief grooves type G and H correspond with the "Indexable hard material inserts" according to ISO 6987.

Life cycle

PREVIOUSLY

PUBLISHED
EN ISO 18388:2019

NOW

IN_DEVELOPMENT
prEN ISO 18388 rev
30.99 CD approved for registration as DIS
Oct 9, 2026