ISO 11900-3:2004规定了重型E型缩径球锁冲头夹持器及其底塞的尺寸和公差，单位为毫米，主要用途是根据ISO 10071-2在钢板上打孔时保持球锁冲头。它给出了材料指南和硬度要求，并根据ISO 11900的本部分规定了球锁冲头夹持器的名称。

ISO 11900-3:2004 specifies the dimensions and tolerances, in millimetres, of reduced ball-lock punch retainers, type E, for heavy duty, and of their backing plug, the main use being retention of ball-lock punches in accordance with ISO 10071-2, when punching holes in steel sheets. It gives material guidelines and hardness requirements, and specifies the designation of ball-lock punch retainers in accordance with this part of ISO 11900.