Manufactured from chrome vanadium steel, which is correctly hardened and tempered with a 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 full 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: 12 x 1/4" sq. dr. sockets: 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13mm 12 x 1/4" sq. dr. deep sockets: 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13mm 1 x 1/4 sq. dr. 72 tooth reversible ratchets with soft grip and quick release button 1 x 3/8 sq. dr. 72 tooth reversible ratchets with soft grip and quick release button 1 x 1/2" sq. dr. 72 tooth reversible ratchets with soft grip and quick release button 1 x Spinner handle 3 x Universal joints: 1/4, 3/8, 1/2" 10 x 3/8" sq. dr. sockets: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19mm 10 x 3/8" sq. dr. deep sockets: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19mm 2 x 1/4" sq. dr. extension bars: 100, 150mm 1 x 1/4" sq. dr. sliding T - bar 3 x 3/8" sq. dr. spark plug sockets: 10, 12, 14mm 2 x 3/8" sq. dr. extension bars: 75, 150mm 16 x 1/2" sq. dr. sockets: 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 26, 27, 30, 32mm 7 x 1/2" sq. dr. deep sockets: 13, 14, 17, 18, 19, 21, 22mm 2 x 1/2" sq. dr. extension bars: 75, 250mm 1 x 1/2"(F) - 3/8"(M) sliding T - bar adaptor (forms a sliding 'T' bar when used with an extension bar)