General description Professional socket set featuring heat-treated Chrome Vanadium steel sockets and accessories. This 31-piece set covers sizes from 8 to 24mm and includes a 90-tooth gear-to-gear ratchet wrench with quick release, extension bars, a universal joint, and adaptors. It comes supplied in a durable metal storage case with a removable EVA foam tray for organized storage. Technical specifications Model No. AK7921 Socket sizes: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 24mm Ratchet wrench: 3/8"Sq Drive, 90-tooth gear-to-gear with quick release Extension bars: 75mm, 150mm Adaptors: 3/8"Sq Drive - 1/4"Hex, 1/2"Sq Drive Female - 3/8"Sq Drive Male Bits: Slotted – 4, 5.5mm; Phillips - #1, #2; Pozi - #1, #2; Hex– 4, 6mm; TRX-Star* - T15, T20 Other information Lifetime guarantee* Contents map displayed inside the lid