description:- a professional tool set that has been developed to meet the needs of specialized automotive and mechanical services.- the socket wrenches as well as the socket drive are made of durable tool chrome-vanadium crv 50bv3 steel.- the sockets are made by drop forging and before the hardening process they were calibrated using precision gauges and control devices.- the sockets are equipped with the as-drive system increasing the maximum torque by 25% while fully protecting the nut rims and the sockets have a two-tone surface finish.- the set also includes bits made of hard s2 steel.- the set enables work requiring very high loads and precision allows you to perform many service activities related to loosening and tightening threaded connections of various nominal sizes.- the ratchets have three-component handle and 72 teeth (5-degree working stroke). package contents:- 1/2 sockets: 10 11 12 13 14 15 17 19 20 21 22 24 mm l= 38 mm 27 30 32 mm l= 42 mm - 1/2 long sockets: 16 17 18 19 22 mm l= 76 mm - 1/2 torx sockets: e20 e22 e24 - 3/8 sockets: 10 11 12 13 14 15 16 mm l= 28 mm 17 18 19 mm l= 30 mm - 3/8 long sockets: 10 11 12 13 14 15 mm l= 63 mm - 3/8 torx sockets: e10 e11 e12 e14 e16 e18 - 1/4 sockets: 4 4.5 5 5.5 6 7 8 9 10 11 12 13 14 mm l= 25 mm - 1/4 long sockets: 4 5 6 7 8 9 10 mm l= 50 mm - 1/4 torx sockets: e4 e5 e6 e7 e8 - 1/2 ratchet: 72t 255 mm - 3/8 ratchet: 72t 200 mm />- ratchet 1/4: 72t 155 mm - sliding knob: 1/2 l= 255 mm 1/4 l= 152.4 mm - screwdriver knob 1/4 l= 150 mm - screwdriver knob 1/4 with bit socket - extensions 1/2: 125 mm 250 mm - extensions 3/8: 575 mm 150 mm - extensions 1/4: 50 mm 100 mm - spark plug sockets 1/2: 16 21 mm - spark plug sockets 3/8: 18 mm - universal joint: 1/2 3/8 and 1/4 - adapter for 5/1 bits with 1/2 - adapter for 5/16 bits with 3/8 - bits 5/16: 30 pcs. - bits 1/4: 44 pcs. - torx screwdriver bits on 1/4 socket: t8 t10 x2 t15 x2 t20 x2 t25 x2 t40 - torx screwdriver bits on 1/2 socket: t55 t60 - philips screwdriver bits on 1/4 socket: ph1 ph2 - pozidriv screwdriver bits on 1/4 socket: pz1 pz2 - flat screwdriver bits on socket 1/4: 4 5.5 7 mm - hexagonal screwdriver bits on 1/4 socket: 3 4 5 6 mm - open-end wrenches: 8 10 11 12 13 14 15 16 17 18 19 22 mm - allen keys: 1.27 1.5 2 2.5 3 4 5 mmtechnical data:- index number yt-38841- gross weight (kg) 12.0000- socket type as-drive- socket size [mm] 10-3216-22e20-e2410-3010-15e10-e184-144-10e4-e8- length [mm] 255- material crv6140 crv6150 crv50bv30- number of elements [pcs.] 216- size [inch] 1/2 1/4 3/8