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 BenefitsExpert Quality22 metric sockets10 imperial sockets3 spark plug sockets72 tooth ratchet3 extension bars sizeSliding 'T' barUniversal joint Contents 22 x Metric socket: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32mm 10 x Imperial socket: 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1" 3 x Spark plug socket: 10, 12, 14mm 1 x 72 tooth ratchet with "quick release" button 3 x Wobble extension bars: 75, 125, 250mm 1 x Sliding 'T' bar 1 x Universal joint