A tool for effecting attachment of an electrical terminal terminated on a wire with respect to a mating electrical contact is provided including an elongate tubular body having a first opened end, a second opened end and a continuous slot from the first to the second opened end. The continuous slot defines a pair of inwardly deflectable opposed sidewalls, wherein the wire may be loosely received between the opposed sidewalls. A first recessed stop toward the first opened end of the tubular body is adapted to seat at least the terminal at the first opened end. The opposed sidewalls are inwardly deflectable so as to grip the wire to effect attachment to the mating electrical contact.