International set of 12 insulated sockets The sockets reversible ratchet and 5in extension bar are totally insulated for maximum personal protection Made from injection moulded nylon 11 which exceeds the requirements of IEC 60900 the industry standard for live line working In addition these tools meet the requirements of Category C which requires them to perform at extreme temperatures of -40°C to +70°C making them unique in this category The set contains 6 x Metric Sockets 8 10 13 17 19 and 20mm 4 x Imperial Sockets 38 12 34 and 78in AF 1 x 12in Reversible Ratchet 1 x 5in 127mm Extension Bar ITL also offers the best guarantee in the market - a lifetime warranty on the tool and insulation plus a 30 day no quibble money back guarantee