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. The 26 in. long-arm tree pruners are suitable for cutting branches and limbs up to 1-1/2 in. in diameter.