The Simply45 Adjustable LAN Cable Stripper, in blue, allows you to professionally strip shielded (STP) and unshielded (UTP) copper LAN cables, including Cat7a, Cat7, Cat6a, Cat6, Cat5e, and Cat3 cables. This cable stripper is a multi-function tool that also lets you strip speaker and audio cables, straighten LAN cable wire conductors, and more. For precision performance, a turning knob is adjustable to raise or lower the trimming blade for ideal depth.