PURPOSE: To prevent the interference of the edge part of pierced hole opening with the cutting edge of lower die at the time for carrying-out the coil stock immediately after forming a large pierced hole at the central part.

CONSTITUTION: A latch arm 14 being slidable to the carrying-out direction of a coil stock C and to the upper and lower directions is provided at the upper die 1. At the time of carrying-out the coil stock C, a latch 14 of the end of latch arm 14 is engaged to the opening edge part (e) of the opposite carrying-out direction of the pierced hole P just after blanking Due to the engage of the pierced hole P with the latch 17, the latch arm 14 is slid to the carrying-out direction with the carrying-out force of the coil stock C while supporting the coil stock with the latch arm 14.