Just insert the wire into the self adjusting jaws then squeeze.In less than a second, this tool will prep a wire perfectly.There is absolutely no pre-measuring and no pulling.Used for stripping a wide variety of insulated wires and coaxial cables, adjustable gripping tension.It is great for electricians, warehouses, automotive, garages, network, installations and much more. Color blue/yellowAutomatic wire stripper and cutterAdjustment dial for blade pressure to match varying hardness and thickness of insulatorsPlastic jaw and teeth with metal strippersAdjustable gripping tension.