DIN ISO 10071-2:2006-03

This part of ISO 10071 lays down interchangeability dimensions and tolerances, in millimetres, for ball-lock punches for heavy duty. It covers ball-lock punches with shank diameter sizes from 10 mm up to and including 40 mm, in round, square, rectangular and oblong shapes, for punching holes in steel sheets or other materials, the thickness of which is less than 8 mm. This part of ISO 10071 also gives examples on materials and hardness, and specifies the designation of ball-lock punches heavy duty.