1/4'' + 1/2'' CHROMEplus socket set, 151 parts, flank traction. Supplied = assembled. Number of parts = 151 pcs. Product type = box spanners. Hexagonal. FlankTraction profile. Bright chrome plated. Chrome vanadium. In a sturdy plastic case. The following tools are included: 9 x CHROMEplus combination spanners, angled: 8, 9, 10, 11, 12, 13, 14, 17, 19 mm 8 x 1/4'' bit for Torx screws, bore hole, 25 mm: TB7, TB8, TB9, TB10, TB15, TB20, TB25, TB27 8 x 1/4'' tamperproof five star bit, bore hole: TS10, TS15, TS20, TS25, TS27, TS30, TS40, TS45 2 x 5/16'' bit for PZ socket, 30 mm: PZ3, PZ4 5 x 5/16'' bit for hexagon socket, 30 mm: 7, 8, 10, 12, 14 mm 2 x 5/16'' bit for PH socket, 30 mm: PH3, PH4 6 x 5/16'' bit for Torx screws, bore hole, 30 mm: TB40, TB45, TB50, TB55, TB60, TB70 3 x 5/16'' bit for slotted screws, 30 mm: 8, 10, 12 mm 6 x 5/16'' bit for Torx screws, 30 mm: T40, T45, T50, T55, T60, T70 2 x 5/16'' bit spline for XZN, 30 mm: M10, M12 2 x 5/16'' bit for RIBE screws, 38 mm: M10, M12