This Bahco S138 socket set includes 138 pieces made from alloy steel. The set comes in a silver color and is delivered with 27 bits, 7 extensions, 4 ratchets, 68 sockets, 13 spanners, and 3 universal joints. The total weight of the set is 10580g. It features metric and imperial sizes for 1/4in, 3/8in, and 1/2in drives and is supplied in a high-density polythene case. Specific inclusions are: 12 x 1/4in Hexagon Sockets (4-13mm), 10 x 1/4in Hexagon Deep Sockets (4-13mm), 1 x 1/4in 150mm Reversible Ratchet, 1 x 1/4in 150mm Spinner, 1 x 1/4in 106mm Sliding T-Bar, 2 x 1/4in Extension Bars (50 & 100mm), 1 x 1/4in Universal Joint, 1 x 1/4in Bit Holder, 1 x 1/4in 150mm Flexible Extension Bar, 16 x 3/8in Hexagon Sockets (6-22mm), 1 x 3/8in 200mm Reversible Ratchet, 3 x 3/8in Spark Plug Sockets (16, 18, 21mm), 1 x 3/8in Universal Joint, 2 x 3/8in Extension Bars (75 & 150mm), 18 x 1/2in Metric Hexagon Sockets (10-34mm), 9 x 1/2in Imperial Hexagon Sockets (3/8in to 1.3/16in), 1 x 1/2in 250mm Reversible Ratchet, 1 x 1/2in Sliding T-Bar, 1/2in Head 3/8F-1/2in Male Adaptor, 2 x 1/2in Extension Bars (125 & 250mm), 1 x 1/2in Universal Joint, 1 x 1/4in Square Drive Bit Adaptor, 4 x Pozidriv Bits (PZ0-PZ3), 5 x Phillips Bits (PH0-PH4), 3 x Flat Bits (4, 5.5, 7mm), 6 x Insert Bits (3-10mm), 9 x TORX Bits (T8-T45), 1 x Bit Ratchet, 3 x Hexagon Keys (1.5-2.5mm), 8 x Crow Foot Wrenches (0-19mm), and 13 x Combination Spanners (7-19mm).