A cutting fixture for incising a tap portion installed between a pair power cables. A fixture body is mounted atop a power press tool in contact with a linearly advancing ram of the tool. The fixture body terminates in a downwardly facing support surface. A pair of levers are pivotally mounted to the fixture body, each including a bottom end profile and a roller at an upper end which, in response to upward displacement of the ram, multi-directionally advances to displace against an underside of a linearly movable carriage supported upon the fixture body in proximity to the levers. A cutting blade is supported upon the carriage and, in response to elevation of the carriage, displaces upwardly in a force multiplying fashion to section the H-tap positioned between the carriage and the downwardly facing support surface in order to permit its removal while preserving the integrity of the cables.