A spring pack assembly (60; 70; 90; 1100) for a punch tool, the assembly comprising: - a canister sidewall (600; 700; 900; 1200) extending about a central longitudinal axis (6; 7; 1; 11) of the assembly; and - an adjustment subassembly (650; 750; 950; 1150) being coupled to the canister sidewall and comprising a punch head (655; 755; 955; 1155), an engagement sidewall (613; 713; 913; 1113), a locking member (656; 756; 956; 1156) and a release member (652; 752; 952; 1152); - wherein the punch head includes a threaded surface (615; 715; 919; 1115) adapted to engage a mating threaded surface of either a punch body or a punch holder, such that, when the punch body/holder is mated with the punch head, a rotation of the punch head with respect to the punch body/holder will move the punch body/holder along a central longitudinal axis of the spring pack assembly (60; 70; 90; 1100); - the engagement sidewall (613; 713; 913; 1113) surrounds a portion of the punch head (655; 755; 955; 1155) and includes a plurality of locking features (653; 753; 953; 1153) spaced apart, from one another, about a circumference of the engagement sidewall, each of the locking features sized to engage the locking member (656; 756; 956; 1156); and - the locking member (656; 756; 956; 1156) is biased with respect to the punch head (655; 755; 955; 1155), in a first position, where the locking member is engaged with one of the locking features (653; 753; 953; 1153) of the engagement sidewall (613; 713; 913; 1113), so as to prevent the rotation of the punch head (655; 755; 955; 1155); characterized in that - the release member (652; 752; 952; 1152) includes an externally accessible actuation interface (612; 712; 952'; 1152') adapted to receive a force for rotating the release member about the central longitudinal axis of the assembly, and, thereby, move the locking member (656; 756; 956; 1156) from the first, biased, position to a second position, whereby the locking member is released from engagement with the engagement sidewall (613; 713; 913; 1113) so as to allow the rotation of the punch head (655; 755; 955; 1155) via continued application of the force on the actuation interface about the central longitudinal axis of the assembly (60; 70; 90; 1100) and thereby adjust the axial position of the punch body/holder. - a canister sidewall (600; 700; 900; 1200) extending about a central longitudinal axis (6; 7; 1; 11) of the assembly; and - an adjustment subassembly (650; 750; 950; 1150) being coupled to the canister sidewall and comprising a punch head (655; 755; 955; 1155), an engagement sidewall (613; 713; 913; 1113), a locking member (656; 756; 956; 1156) and a release member (652; 752; 952; 1152); - wherein the punch head includes a threaded surface (615; 715; 919; 1115) adapted to engage a mating threaded surface of either a punch body or a punch holder, such that, when the punch body/holder is mated with the punch head, a rotation of the punch head with respect to the punch body/holder will move the punch body/holder along a central longitudinal axis of the spring pack assembly (60; 70; 90; 1100); - the engagement sidewall (613; 713; 913; 1113) surrounds a portion of the punch head (655; 755; 955; 1155) and includes a plurality of locking features (653; 753; 953; 1153) spaced apart, from one another, about a circumference of the engagement sidewall, each of the locking features sized to engage the locking member (656; 756; 956; 1156); and - the locking member (656; 756; 956; 1156) is biased with respect to the punch head (655; 755; 955; 1155), in a first position, where the locking member is engaged with one of the locking features (653; 753; 953; 1153) of the engagement sidewall (613; 713; 913; 1113), so as to prevent the rotation of the punch head (655; 755; 955; 1155); characterized in that - the release member (652; 752; 952; 1152) includes an externally accessible actuation interface (612; 712; 952'; 1152') adapted to receive a force for rotating the release member about the central longitudinal axis of the assembly, and, thereby, move the locking member (656; 756; 956; 1156) from the first, biased, position to a second position, whereby the locking member is released from engagement with the engagement sidewall (613; 713; 913; 1113) so as to allow the rotation of the punch head (655; 755; 955; 1155) via continued application of the force on the actuation interface about the central longitudinal axis of the assembly (60; 70; 90; 1100) and thereby adjust the axial position of the punch body/holder.