ISO/TS 13399-301:2013 specifies a concept for the design of tool items, limited to any kind of taps and dies, together with the usage of the related properties and domains of values.

ISO/TS 13399-301:2013 specifies a common way of designing simplified models that contain:

• definitions and identifications of the design features of thread-cutting taps, thread-forming taps and thread-cutting dies with solid cutting edges, with a link to the properties used;
• definitions and identifications of the internal structure of the 3D model that represents the features and properties of thread-cutting taps, thread-forming taps and thread-cutting dies with solid cutting edges.