CSN EN ISO 18388 This International Standard 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. Original English text of CSN EN Standard. The price of the Standard included all amendments and correcturs.
