Abstract: A die or punch is provided for a press tool. The die or punch includes a body and a roller assembly having a holder and a roller. The holder is shaped to slidably engage with a complementary cavity in the body to facilitate secure installation of the holder in the body. The holder is able to be removably inserted into the body to present the roller as a forming edge to shape a work piece in a press tool. The roller is able to turn with respect to the holder when shaping a work piece to protect the roller against wear.