For removing damaged hex bolts and screws. Includes 7 x 1/4″ Hex shank: 1.5, 2, 2.5, 3, 4, 5, 6mm x 50mm long. 3 x 10mm Hex shank: 7, 8, 10mm x 38mm long. 1 x 1/2″D x 10mm Hex bit adaptor. Packed in a plastic storage case.