Alden 8440P Pro Grabit Broken Bolt and Damaged Screw Extractor 4 Piece Kit Two-step drill bit and extractor in one tool. Multiple tools not required. Self centering drill tip; no walking or wandering. No grinding, center punching required. Can be used in quick change chucks. Easy to use. Tempered twice for extra hardness. Results in multiple extractions per tool. Made from M2 HSS. Highest quality steel used and made in the USA.