The Wera 8100 SB2 is a 43 piece 3/8in drive Premium Zyklop Socket Set in rugged steel case. Zyklop sockets are the first to be certified for use with both manual and power tool use (not impact). The set features:3/8in drive Zyklop 8000B ratchet.18 x Zyklop sockets 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22 and 24mm.2 x flexible lock extensions (50mm short and 76mm long) with freewheel sleeve.1 x wobble extension.1 x universal joint.1 x T-handle.1 x quick release Rapidaptor bit holding adaptor. Screwdriver bits:6 x 840/1 Z Hex-Plus: 3.0mm, 4.0mm, 5.0mm, 6.0mm, 8.0mm and 10.0mm.2 x 851/1 Z Phillips: PH2 and PH3.2 x 855/1 Z Pozi: PZ2 and PZ3.7 x 867/1 Z TORX®: TX10, TX15, TX20, TX25, TX27, TX30 and TX40. 1 x 7800/1 Z Slotted: 1.0 x 5.5mm. Even the case is innovative, with soft feet on both base and lid to prevent marking surfaces, flexible rubber fasteners, lasered contents guide in lid that won\'t fade or peel, and a 2 colour foam insert that easily shows tool location and is removable for use with tool cabinets/trolleys.