Insulated hand tools from Jameson provide maximum electrical protection and are suitable for working live or close to live parts at nominal voltages up to 1,000 volts. Constructed using heavy-duty injection molded Nylon 11; they are ideal for use in a wide variety of utility, electrical, and telecommunication applications. These 6-1/4" Insulated Wire Strippers from Jameson (JT-PL-00174) feature a built-in adjustment screw and accommodate a wide range of solid/stranded wire sizes.