General description These ITL 12 Piece ½ Inch Drive Socket Set's are fully insulated and exceed international standards. Manufactured from injection moulded nylon thermoplastic, they are designed to withstand extreme impact, abrasion, and are flame retardant. The set includes a variety of metric and imperial sockets, along with a reversible ratchet and extension bar, all providing maximum personal protection. Technical specifications Material: Injection moulded nylon thermoplastic Insulation tested to: IEC60900, Category C and ASTMF1505 Temperature range: -40ºF to +158ºF (-40ºC to +70ºC) Voltage testing: 1000 volts for 3 minutes submerged in water Lifetime guarantee on tool and insulation Compatibility and accessories 6 x Metric Sockets: 8, 10, 13, 17, 19, and 20mm 4 x Imperial Sockets: 3/8, 1/2, 3/4, and 7/8in AF 1 x 1/2in Reversible Ratchet 1 x 5in (127mm) Extension Bar Other information Category C Impact Tested Lifetime warranty on tool and insulation 30-day no quibble money back