Detailed Product Description Features:: 1) 12pc HSS drills 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 11/64, 3/16, 13/64,7/32, 15/64, 1/4"2) 4pcs power nut driver: 1/4, 5/16, 3/8, 7/16"6) 8pc 50L screwdriver bits Packing: 6sets/ inner box, 24 set/cartonCarton size: 55 x 38 x 24cm G.W.: 12kg