Wire-insertion and cutting tool, wire-insertion tool, and wire-insertion blade assembly

A wire-insertion and/or cutting tool comprises a handle having an axial bore, including a wire-insertion and cutting blade assembly holder. A wire-insertion and/or cutting blade assembly is inserted into the holder in a selected one of a plurality of blade assembly insertion orientations. The blade assembly includes a wire-insertion and/or cutting blade, that is configured to engage a wire to be inserted into a terminal block, and is operative to either seat, or to both seat and cut the wire in accordance with the selected blade assembly configuration and its insertion orientation. The blade assembly may include a rotatable cutting blade, and the holder configured to rotate the cutting blade and cut a wire engaged for a first insertion orientation of the blade relative to the holder, but to prevent the cutting blade from rotating for a second insertion orientation of the blade assembly relative to the holder. The handle may also include a spring-loaded, axially translatable, impact hammer mechanism.