This Capri Tools 1/4 in. Drive Master 6-Point Metric Chrome Socket Set with Ratchet and Extensions include (28) high performance sockets, (1) 90-tooth soft grip ratchet and (5) Wobble Plus extension bars. We use premium Chrome Vanadium steel tempered with our proprietary heat treatment process to make these sockets, ratchet and extensions. They are durable and withstand more torque. Each socket underwent careful polishing and protective plating process to achieve our own MaxChrome finish. 6-point WaveDrive socket design grips fasteners more tightly than traditional design, preventing fastener rounding and giving you more leverage. Wobble Plus extension bars let you reach and turn fasteners that can only be reached at an angle up to 15 degrees. 90-tooth low-profile dual-direction soft grip ratchet is essential in working in narrow spots. 34-piece set includes (14) 1/4 in. drive 6-point shallow chrome sockets: 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 mm, (14) 1/4 in. drive 6-point deep chrome sockets: 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 mm, (5) 1/4 in. Wobble Plus extension bars: 2, 3, 6, 10, 14 in. and (1) 1/4 in. drive 90-tooth soft grip ratchet.