Abstract: A bottom die for a stamping tool for producing cardboard blanks consists of a composite plate made from a support foil and a top layer consisting of phenol-resin bonded paper with a textile insert. Scoring grooves are milled into the top layer of phenol-resin bonded paper to serve as a counter contour of the top die of the stamping tool. The bottom die can be removably disposed on the bottom tool plate of a stamping machine by means of an adhesive layer which is self-adhesive on both sides. According to the invention, the scoring grooves are formed through the top resin bonded paper layer of the bottom die to the level of the flexible support foil, whereby the bottom die is given a relatively large degree of flexibility. Thus, a repeated use of the bottom die sheet is possible. In addition, a method for producing a bottom die for a stamping tool, employing the above-described die, is disclosed.