Abstract: A device for splicing magnetic tape particularly useful with endless magnetic tape cartridges comprising a splicing block having a cutter guide slot defined therein extending through a tape guideway disposed in the top of the splicing block. A plurality of air ports are located on both sides of the cutter guide slot, the air ports on one side operable independently of the air ports on the other side with means to provide each set of air ports with a source of vacuum suction through the air ports, and a splicing tape holder with vacuum suction means at its base for the holding of splicing tape segments adapted to be maneuvered into a position in the tape guideway to cause the splicing tape segments to make contact with and splice magnetic tape ends disposed in the tape guideway.