A tool for mounting a flexible slotted sleeve to hold more than one cable/wire together. The sleeve includes repetitive cuts cooperatively positioned to enhance the flexibility of the sleeve. The tool includes a slotted tubular member with a longitudinal slot through which the wires and cables are passed to be temporarily received within the slotted tubular member. A cylindrical member is mounted to the slotted tubular member, at an angle, with a distal rounded closed end and an open end that coincides into one of the open ends of the slotted tubular member. As the slotted sleeve is brought against the rounded closed end, its slot is opened and travels open towards the open end where the cables are. After leaving the open end of the slotted tubular member, the slotted sleeve is released embracing the cables to be protected.