Damaged Hex Bolt Extractor

7 piece hex bolt extractor bit set designed to remove damaged, rounded, or corroded allen (Hex) bolts or screws. Sizes: 1.5, 2, 2.5, 3, 4, 5 & 6mm x 50mm long. 1/4” shank with quick chuck end. Packed in a storage case. For use with a drill.