This 287-pcs Set includes [3] Ratchet handles (1/4" drive, 3/8" drive, 1/2" drive), [8] Combination wrenches (5/16", 11/32", 3/8", 7/16", 10 mm, 12 mm, 13 mm,14mm), [1] Hex to square 1/4" socket bit adapter(1/4" x 25 mm), [12] Nut drivers (5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 3/16", 1/4",9/32", 5/16", 11/32", 3/8"), [1] Magnetic bit driver handle(30*108mm), [23] 1/4" Dr. 6 pt std sockets (12 pieces metric: 4 mm, 5 mm, 5.5 mm, 6 mm,7 mm,8 mm,9 mm,10 mm,11 mm, 12 mm, 13 mm, 14 mm & 11 pieces SAE: 5/32", 3/16", 7/32", 1/4",9/32",5/16",11/32",3/8",7/16", 1/2", 9/16"), [21] 1/4" Dr. 6 pt deep sockets (11 pieces metric: 4 mm, 5 mm,6 mm, 7 mm, 8mm, 9mm，10mm，11mm，12 mm, 13 mm, 14 mm & 10 pieces SAE：3/16", 7/32", 1/4", 9/32",5/16", 11/32", 3/8", 7/16",1/2", 9/16"), [26] 3/8"Dr.12 pt std sockets (15 pieces Metric: 6mm,7mm,8mm,9mm,10mm,11mm,12mm,13mm,14mm,15 mm,16mm，17mm，18mm,19 mm,20 mm & 11 pieces SAE: 1/4", 5/16", 3/8", 7/16", 1/2",9/16",5/8",11/16",3/4",13/16", 7/8"), [5] 3/8" Dr. 8 pt std sockets (1/4", 5/16", 3/8",7/16", 1/2"), [6] 3/8" Dr.6 pt deep sockets (3 pieces metric: 12 mm, 13 mm, 14 mm & 3 pieces SAE: 3/8", 7/16", 1/2"), [13] 1/2" Dr.12 pt std. Sockets (7pieces metric: 9 mm, 10 mm,12 mm, 13 mm,14 mm, 15 mm, 16 mm & 6 pieces SAE: 1/2", 9/16", 5/8",11/16",3/4", 13/16"), [4] Extension bars (1/4" x 1-1/2", 1/4" x 3", 3/8" x 3", 1/2" x 3"), [3] Adapter (1/4"(F) x 3/8"(M), 3/8"(F) x 1/4"(M), 3/8"(F) x 1/2"(M)), [13] 1/4" Dr. bit sockets (T8,T10, T15,T20,T25,T8×2,T10 x 2,T27, T30,H3/16", H7/32"), [12] 3/8 Drive bit sockets (T27, T30, T40, T45 x 2, T47, T50, H5/32", H3/16",H1/4", H4, H5), [40] Hex keys (20 pcs Short arm：3/8", 5/16", 1/4", 7/32",3/16", 5/32", 1/8", 3/32",5/64", 1/16", 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm,5.5 mm, 6 mm, 8 mm, 10 mm & 20 pcs Long arm: 3/8", 5/16", 1/4", 7/32",3/16", 5/32", 1/8", 3/32",5/64",1/16", 1.5 mm, 2 mm,2.5 mm, 3 mm, 4 mm, 5 mm, 5.5 mm, 6 mm, 8 mm, 10 mm), [96] Bits (12 pcs Phillips: PHO, PH1 x2, PH2 x 4,PH3 x 4, PH4, 24 pcs Slotted: 3/32", 1/8" x 2, 5/32", 3/16"x2, 7/32''x2, 1/4" x 3, 9/32", 2mm, 2.5 mm, 3 mm,3.5 mm, 4 mm, 4.5 mm,5mmx2, 5.5mm，6mm，6.5 mm, 7 mm; 12 pcs Pozi: PZO x2, PZ1 x 3, PZ2 x 3, PZ3 x 3, PZ4; 12pcs Torx: T6,T7,T8,T9,T10,T15,T20,T25,T27,T30,T35,T40; 24pcs Hex: H1/16", H5/64", H3/32",H7/64", H1/8", H9/64", H5/32" x 2, H3/16" x 2,H7/32", H1/4", H1.5mm,H2 mm, H2.5 mm, H3 mm x 2,H3.5 mm, H4 mm x 2, H4.5 mm, H5 mm, H5.5 mm, H6 mm & 12 pcs Square: S0 x 2, S1 x 3, S2 x 3, S3 x 3, S4)