The drilled stripper will strip round magnet and enamel wires with any type of film insulation, including formvar, nylon, polythermaleze and varnish The variable speed power unit controls the speed. Insulation is cleanly removed but the wire conductor is not damaged. - The drilled stripper is ideal for the production and repair stripping of armatures, coils, chokes, transformers, relays, solenoids, etc. The optional Bench Kit enables all models to be used as bench mounted machines.