Relates to this invention as for the punch pin 11 for the Bali removal which, this connection section 31b of flange condition to be formed by the top part of the peripheral face flank of punch pin 31, from aforementioned this connection section 31b on work W side, the multiple channels 31a & 31a to be formed in shaft center direction, inner 21 and the Bali removal processed department 30 as inner 21 vis-a-vis second outer 33, sleeve it is interposed unrestrictedly, with the spring cylinder 12, mutually is alienated energization to be done in the direction which, punch pin 11 for the Bali removal to approach to work W, this connection section 31bThe Bali removal processed department 30 in order to turn to the center, was formed the shaft center vis-a-vis inner 21 the spring cylinder 12 was compressed by this touching to flange F, attendant upon the sleeve to inside second outer 33 of inner 21, rotary feature is had.
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