Alden 8404P Pro Grabit Broken Bolt and Damaged Screw Extractor #4 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. Chuck directly into power hand drill. Multiple tools not required. Tempered twice for extra hardness. Results in multiple extractions per tool. Made from M2 HSS. Highest quality steel used and made in the USA.