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. Kit comes with a tool case and includes a 3/8-in. drive ratchet wrench with 5-in. extension and both metric and imperial sockets in 3/8-in. drive. Metric sockets include 8 mm, 10 mm, 13 mm, 17 mm, 19 mm and 20 mm. Imperial sockets include 3/8 in., 1/2 in., 3/4 in. and 7/8 in.