General description Sealey Premier Impact Socket Set is a comprehensive 19-piece set designed for daily professional use. Manufactured from hardened and tempered Chrome Vanadium steel, these sockets are built for strength and durability, making them suitable for use with impact tools. Technical specifications 19-piece set Socket sizes: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 24, 27mm Extensions: 50mm, 150mm, 250mm Adaptor: 1/2Sq F x 3/4Sq M Universal Joint: 1/2Sq Other information WallDrive™ sockets designed to grip the flats of the fixing, allowing up to 30% more torque without damaging the fixing Phosphate finish for added corrosion resistance Supplied in a metal storage case for increased storage solutions Lifetime guarantee*