Expert Quality, twelve point socket made from chrome vanadium steel that's hardened and tempered with a polished finish. Each socket has a knurled ring for extra grip. Supplied with a 72 tooth reversible ratchet and accessories. Packed in a tough plastic storage case with soft grip handle. Manufactured and tested generally in accordance with DIN3122 and ISO3315 Specifications Features and Benefits • Expert Quality • 17 metric sockets • 9 imperial sockets • 4 metric deep sockets • 3 spark plug sockets • 72 teeth reversible ratchet • Spinner handle • Flexible handle • 3 extension bars • Sliding T bar Contents 17 x Metric socket: 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22mm 4 x Metric deep socket: 8, 10, 12, 13mm 9 x Imperial socket: 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4" 3 x Spark plug socket: 10, 12, 14mm 1 x 72 tooth reversible ratchet with "quick release" button 3 x Wobble extension bars: 75, 150, 250mm 1 x Sliding 'T' bar 1 x Flexible handle 1 x Universal joint 1 x Spinner handle