Expert Quality, sockets are manufactured from chrome vanadium steel, which is correctly hardened and tempered with a micro satin chrome plated finish. Each socket has a knurled ring for extra grip. Supplied with 72 tooth reversible soft grip ratchet and accessories. Supplied complete in a two tone 1/2 drawer EVA insert tray made from closed cell foam. Suitable to be used in Draper and Draper Expert tool chests and other manufacturers similar tool chests. Contents: 15 x Sockets: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22mm, 13 x Deep sockets: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21mm, 3 x Spark plug sockets: 10, 12, 14mm, 1 x 72 tooth reversible ratchet with soft grip and quick release button, 2 x Extension bars: 75, 125mm, 1 x Universal joint