Professional Ratchet Wrench Set 171 Piece Chrome Vanadium Steel Tool Case. This 171 Piece Ratchet Tool Case is the perfect set for the ambitious DIY enthusiast, handy and clear, safely stored in a lockable case. The tools are made of chrome vanadium steel for increased strength, while the chromium content improves corrosion protection;;. Technical data: Case: Hard ABS plastic Tool material: Chrome vanadium steel Set includes: 1/2 " 17x1/2" sockets: 10, 11, 12, 13, 14, 15, 16, 17 , 18 , 19, 20, 21, 22, 24, 27, 30, 32 mm 5x1/2" extra deep sockets: 16, 17, 18, 19, 22 mm 2x1/2" Torx sockets: E20, E24 2x1/2" spark plug sockets: 16 mm and 21 mm 2x1/2 inch flares: 5 inch and 10 inch 1/4 inch 30 x 1/4 inch bit: H2, 3, 4, 5, 6 fd4, 5 .5.5, 7PH1, 2, 3 T8, 9, 10 , 15, 20, 25, 27 30, TT8, 9, 10, 15, 20, 25, 27, 30 13x 1/4 ": 4, 4.5 , 5, 5.5, 6, 7, 8, 9, 10, 11 , 12, 13, 14 mm 1/4x7" additional sockets: 4, 5, 6, 7, 8, 9, 10 mm 1/4" x5: Torx E4, E5, E6, E7, E8 1/4"x2" extensions: 2" and 4" 1x1/4" T-handle 1x1/4" socket holder: 6" 3/8" 10x3/8" sockets: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 mm 6x3/8": "Torx E10, E11, E12, E14, E16, E18 6x 3/8" extra deep sockets: 10, 11, 12, 13, 14, 15 mm 1x 3/8" spark plug sockets: 21 mm 1x 3/8" extensions: 6" 3x RATCHET: 1/4", 3/8" and 1/2" 3x drives: 1/4", 3/8" and 1/2" 2x drives (8 mm): 3/8" and 1/2" 1x 3-function adapter BITS bits: H7, 8, 10, 12, 14 FD8, 10 , 12 pH 3, 4 PZ3, 4 T40 45, 50, 55, 60, 70 TT40, 45, 50, 55, 60, 70 10x bits: T3, 4, 5, 8, 9, 10, 15, 252 , 30 10x sockets: TT4, 5.5, 7, 8, 9, 10, 15, 20, 25, 30 INBUS 7x Allen 6-socket wrenches: 1.5, 2, 2.5, 3, 4, 5, 6 mm1 1x plastic case