Interchangeable spring pack for an upper die in a lead forming system

A spring pack in an upper die unit of a lead forming system, comprising:

• a top member having a front, a rear and a pair of sides;
• a bottom member having a center opening, a front, a rear and a pair of sides, the bottom member coupled to the top member by a plurality of fasteners;
• two pairs of rear chamfers, a first pair on the top member and a second pair on the bottom member, the rear chamfers of the top member being the mirror image of the rear chamfers of the bottom member,
• two pairs of front chamfers, a first pair on the top member and a second pair on the bottom member, the front chamfers extending to a plurality of grooves on the sides of the top member and the sides of the bottom member, each groove terminating in a bevel connecting to the sides of the bottom member and to the sides of the top member, the front chamfers, the grooves and the bevels of the top member being the mirror image of the front chamfers, the grooves and the bevels of the bottom member;
• a pressure plate conforming to the center opening in the bottom member such that the pressure plate substantially covers the center opening of the bottom member;
• and
• a plurality of springs between the top member and the pressure plate configured for allowing deflection of the pressure plate within the center opening of the bottom member.