International Organization for Standardization (ISO)
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ISO 9181:2007
Scope
This International Standard specifies the dimensions and tolerances, in millimetres, for round punches with a
60° conical head and reduced shank, having shank diameters D1 of 2 mm or 3 mm.
It gives examples of materials and hardness, and specifies the designation of punches which meet the
requirements of this International Standard.
The main use of punches defined in this International Standard is for punching holes in steel sheet. They may
also be used for punching holes in other materials.
ISO 9181:2007 history
2007ISO 9181:2007 Tools for pressing - Round punches with 60° conical head and reduced shank
1990ISO 9181:1990 Tools for pressing; round punches with 60° conical head and reduced shank