The Bahco SL24 1/4in drive Socket Set contains sockets made from high performance alloy steel with a matt finish. The set is supplied in a High Density Polythene (HDPE) case. Conforms to ISO 1174 and DIN 3120 standards. Contents: 1 x Quick Release, Extra Narrow Head Ratchet 72 teeth 5° action angle.1 x Locking Socket Bit 1/4in x 1/4in.6 x Hex sockets: 4, 5, 6, 7, 8 & 10mm.2 x Slotted Bits: 4 & 5mm.3 x Phillips Bits : PH1, PH2 & PH3.2 x Hex Bits: 4 & 5mm.4 x 1/4in TORX® Bits: TX10, TX15, TX20 & TX25.3 x Pozidriv Bits: PZ1, PZ2 & PZ3.1 x Smooth Operation Universal Joint.1 x 100mm Locking Extension Bar.1 x High Density Plastic Case.Additional Information:• Metric/Imperial: Metric• Set Type: 1/4in