PROTO J54318H Hex Bit Set, 1/2 Drive, 18pcs. 1/4 in to 3/4 in, 6 mm to 19 mm. 16 x 11 x 2-1/2. (1) 1/2 in Hex Bit; (1) 1/4 in Hex Bit; (1) 10MM Hex Bit; (1) 12MM Hex Bit; (1) 13MM Hex Bit; (1) 14MM Hex Bit; (1) 15MM Hex Bit; (1) 17MM Hex Bit; (1) 18MM Hex Bit; (1) 19MM Hex Bit; (1) 3/4 in Hex Bit; (1) 3/8 in Hex Bit; (1) 5/16 in Hex Bit; (1) 5/8 in Hex Bit; (1) 6MM Hex Bit; (1) 7/16 in Hex Bit; (1) 8MM Hex Bit; (1) 9/16 in Hex Bit. Check out our other auctions as we generally have many interesting or rare items.