Patent ID: 8408111

Claim:
A spring pack assembly for a punch tool, the assembly comprising: a canister including a first end, adapted for coupling to a punch guide sidewall, and a second end; and an adjustment subassembly being coupled to the second end of the canister, the adjustment subassembly comprising a punch head, an engagement sidewall, a locking member, and a release member; wherein the punch head is adapted to engage either a punch body or a punch holder, such that, when the punch body/holder extends within the canister and is mated with the punch head, a rotation of the punch head will move the punch body/holder along a central longitudinal axis of the canister; the engagement sidewall surrounds a portion of the punch head; the locking member, in a first position, is engaged with the engagement sidewall, so as to prevent the rotation of the punch head; and the release member includes an externally accessible actuation interface adapted to receive a force for moving the locking member from the first position to a second position, whereby the locking member is released from engagement with the engagement sidewall, wherein release of the locking member from the engagement sidewall allows collective rotation of the punch head, the locking member, and the release member relative to the engagement sidewall.