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standard by International Organization for Standardization, 08/01/2001
This part of ISO 11900 specifies the dimensions and tolerances, in millimetres, of reduced ball-lock punch retainers, type C and type D, for light duty, and of their backing plug, the main use being retention of ball-lock punches in accordance with ISO 10071-1, when punching holes in steel sheets.
It also gives material guidelines and hardness requirements, and specifies the designation of ball-lock punch retainers in accordance with this part of ISO 11900.