Master Mechanic, 18 Piece, Combination, Short & Long Arm, Hex-L Key Set, Includes Short .050", 1/16", 5/64", 3/32", 7/64", 1/8", 5/32", 3/16" & 7/32", Includes Long: 1/16", 5/64", 3/32", 1/8", 9/64", 5/32", 3/16", 1/4" & 5/16", Hex Key Holder Keeps Keys Organized.