This 1/4 inch ratchet socket bit tool kit is made of chrome vanadium steel, with a mirror chrome plated finish for abrasion resistance, ratchet wrench with rubber handles for better and comfortable grip 21 Pcs Bit Socket: 6 Pcs Torx hex socket(T10/T15/T20/T25/T30/T40), 6 Pcs Flat- head hex socket(H3/H4/H5/H6/H7/H8), 3 Pcs Slotted bit socket(S4/S5.5/S7), 3 Pcs Philip bit socket(PH1/PH2/PH3), 3 Pcs Pozidriv bit socket(PZ1/PZ2/PZ3); 13 Pcs 1/4" Hex Metric socket: 4-4.5-5-5.5-6-7-8-9-10-11-12-13-14MM; 3 Pcs L Allen Wrench:1.5-2-2.5MM; The rest 17 pieces of 46 pieces include: 1 Pcs 1/4" universal joint, 1 Pcs 1/4" flexible extension bar, 2 Pcs 1/4" extension bar(50MM,100MM), 1 Pcs 1/4" slide T Bar, 1 Pcs 1/4" quick-release ratchet, 1 Pcs 6" spinner handle, 1 Pcs Bit adaptor, 1 Pcs Blow Tool box A46pcs socket set can be used for tightening or loosening most bolts, nuts, and screws for maintaining automotive, mechanical, and motorcycles, This ratchet wrench repair tool kit is perfect for a handyman, repairman, construction workers, mechanics, and toolset to have at home, garage and the workshop.