An electrician's tool for stripping outer insulating sheathing from multiple conductor electrical cable and for stripping insulation from individually insulated conductors. The tool is characterized by a first flat blade for removing sheathing from one side of a multiple conductor cable to expose the individual conductors, without damaging the individual insulation of those conductors, and a longitudinally retractable knife blade for cutting off the sheathing folded back and separated from the opposite side of the conductors. The tool also preferably has separate blade means for stripping insulation from the ends of individually insulated conductors. The tool is of simple compact construction comprising a pair of arms pivotally connected at one end and carrying the several blade means.