The Bahco SL34 3/8in Drive Socket Set contains a selection of sockets made from high-performance alloy steel with a matt finish. The Dynamic Driveprofile protects the sockets from wear and damage. Supplied in an oil and temperature resistant polypropylene case. Contains: 12 x 3/8in Hex Sockets: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 22mm 2 x 3/8in Spark Plug Sockets: 16mm (5/8in), 21mm (13/16in) 3 x 1/4in Slotted Bits: 4, 5.5, 7mm4 x 1/4in Phillips Bits: PH1, PH2, PH3, PH46 x 1/4in Hex Bits: 3, 4, 5, 6, 7, 8mm 1 x 3/8in Universal Joint 1 x 3/8in x 1/4in Bit Holder 2 x 3/8in Extension Bars: 75, 150mm 1 x 1/4in Square Female x 1/4in Hexagonal Male Bit Holder 1 x 1/4in Spinner with 2-Component Handle 1 x 3/8in SLIM Quick-Release Ratchet HandleAdditional Information:Metric/Imperial: MetricSet Type: 3/8in