NF ISO 12164-3, E62-507-3 (11/2023)

This document specifies the dimensions of hollow cone-face shanks (HSK). These shanks constitute the male part of the interface with machine tools (e.g. milling/drilling machines, turning machines and grinding machines). This document specifies three types of shanks: — Type T has a flange with a peripheral groove for automatic tool changing in turning machines with a collet for HSK type T; — Type TA has a flange with a peripheral groove for automatic tool change in milling machines designed for turning, with a collet for HSK type A or AB; — Type U has a flange without a peripheral groove and is designed for manual tool changing on turning machines. Type T and TA HSKs can also be changed manually through radial bores in the hollow-cone-face shank.
(Automatic translation from French)