Draper Expert 04464 Combined MM/AF Socket Set 3/8" Sq. Dr. Green 41 Piece12-point sockets made from chrome vanadium steel that is hardened and tempered with a polished finish. Each socket has a knurled ring for extra grip. Includes a 72-tooth reversible ratchet and accessories. Supplied in a tough plastic storage case with soft grip handle.Contents:17 x Metric sockets: 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21 and 22mm4 x Metric deep sockets: 8, 10, 12 and 13mm9 x Imperial sockets: 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16 and 3/4"3 x Spark plug sockets: 10, 12 and 14mm1 x 72-tooth reversible ratchet with quick release button3 x Wobble extension bars: 75, 150 and 250mm1 x Sliding T-bar1 x Flexible handle1 x Universal joint1 x Spinner handleStandards: Manufactured and tested generally in accordance with DIN3122 and ISO3315 Specifications