General description This expert quality Draper 04713 Socket and Bit Set is designed for durability and efficiency. Made from chrome vanadium steel, it is correctly hardened and tempered for long-lasting performance. The set includes a variety of sockets and bits, all housed in a convenient soft grip injection plastic storage case. Technical specifications Material: Chrome vanadium steel Number of pieces: 39 Socket sizes: 4, 5, 6, 7, 8, 9, 10, 11, 12mm Extension bar lengths: 55mm, 100mm Ratchet: 72-Tooth reversible Supplied with 1 x Draper Expert Socket and Bit Set, 1/4" Sq. Dr. (39 Piece) 1 x 72-Tooth reversible ratchet 1 x Spinner handle 1 x 55mm Extension bar 1 x 100mm Extension bar 1 x Universal joint 1 x 1/4" Hex to 1/4" Sq. adaptor 9 x Sockets: 4, 5, 6, 7, 8, 9, 10, 11, 12mm 24 x Screwdriver bits: Plain slot (3, 4, 5, 6, 7mm), PH-type (No.0, No.1, No.2, No.3), PZ-type (No.0, No.1, No.2, No.3), TX-STAR® (T10, T15, T20, T25, T27, T30, T40), Hex (3, 4, 5, 6mm)