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standard by International Organization for Standardization, 07/01/2001
This part of ISO 10071 lays down interchangeability dimensions and tolerances, in millimetres, for ball-lock punches.
It covers ball-lock punches with shank diameter sizes from 6 mm up to and including 32 mm, in round, square, rectangular and oblong shapes, for punching holes in steel sheets or other materials, the thickness of which is less than 3 mm.
This part of ISO 10071 also gives examples on materials and hardness, and specifies the designation of ball-lock punches for light duty.