Frustrated with Posidrive/Phillips/Torks fastners with a damaged drive? The Pro Grabit tool will remove broken, damaged or embedded screws and bolts from metal, wood or plastic up to 4\" in length. The Grabit bit machines a conical hole with one end of the bit, which matches the “easy out” at the other end. Just need a slow drill with LH drive. - 2 pieces: screw size 4 to 10, bolts No. 10 to 1/4\" (5mm - 6mm) Two-step drill bit and extractor in one tool. Self centering drill tip; no walking or wandering. No grinding, center punching required. Can drill up to grade 8 or 10.9 class fasteners. Extracts bolt sizes No. 10- 5/16 inch. (5mm - 10mm). 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.