An insulated electric wire having a conductive core and an insulation jacket is center stripped by cutting a pattern in one side of the insulation jacket with a laser beam, and then cutting a coordinated pattern in an opposite side of the insulation jacket with a laser beam to produce two axially spaced circumferential cuts connected by a plurality of generally axial cuts that define at least two removeable insulation slugs for exposing the conductive core while the insulation jacket on either side of the exposed conductive core is left intact. An in-line center stripping device or a multiple wire rotation device may be used for center stripping the insulated electric wire. The insulated slugs may by removed by an insulation removal device on an offal removal assembly.