Designed to crimp RJ11/12 and RJ45 connectors onto CAT3, CAT5/5e, and CAT6 cables, this pass-through connector crimper is perfect for any network installer. Intended for use with 22 AWG-28 AWG flat/round, solid/stranded telephone and data cables. Cleanly trims the wires flush to the end face of pass-through RJ45 connectors.