Abstract: A tool for removing insulation from electric wires having a pair of wire-holding members movable towards and away from each other, in which the wire-holding members have a wire-contacting surface with a V-shaped wire-receiving recess. The wire-holding members have also a side with a cutter knife, the middle portion of which is pivotally connected to that side. An edge of the cutter knife is positioned at the intersection point of the bisector of the vertical angle of the V-shaped recess and the cable-contacting surface. The edge of the cutter knife is elastically urged against the insulation of the wire inserted in an opening between the wire-holding member. A plane including the wire contacting surface of the wire-holding members and perpendicular to the bisector of the V-shaped recess of the wire-holding members, contacts linearly the wire held between the wire-holding members in the direction of the axis of the wire.