Abstract: A hand tool for removing dowel pins from a tool block comprising a commercially available adjustable locking type of pliers modified by special jaws and the addition of a novel jack mechanism. The special jaws are flat jaws having longitudinally extending V-shaped grooves therein, and the novel jack mechanism comprises a puller pin extending through the handle lever of the adjustable locking pliers and having jack screws threaded therethrough on opposite sides of the handle lever such that the screws are operative to apply a thrust between the dowel pin supporting block and the puller pin with its attached tool jaws.