Sockets manufactured from Chrome Vanadium, bits manufactured from S2 steel Includes 17 x 1/4"D Bits, 1 x Socket Adaptor and 15 x Assorted 10mm shank bits and 4 x Hex Keys18 x Standard Sockets 1/2"D: 1 more→0mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 27mm, 30mm, 32mm 4 x Deep Sockets 1/2"D: 14mm, 15mm, 17mm, 19mm 2 x Spark Plug Sockets: 16mm, 21mm13 x 1/4"D Sockets: 4mm, 4.5mm, .5mm, 5.5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm 8 x 1/4"D deep sockets 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm 1/2"D Accessories: Ratchet (72 teeth), Extension bar with 3/8"D10mm Bit Adaptor, 1/4"D Accessories: Ratchet (72 teeth), Socket Driver, 2 x Extension bars …