Drill Operated Copper Wire Stripper, for Both Hand Crank and Drill Operated Stripping range: Diameters from 0.12 (3mm) up to 0.78 (20mm), best for larger wire Buy now and earn 1 pc free blade. All aluminum frame. Weights only 2.9LBS. Light weight and portable. Strip only the plastic/rubber layer of the cable/wire. Won't strip telecommunication cable.