This ProGrabitÂ® three-piece set contains everything you need to quickly and easily remove most Phillips, Torx, or Square Drive screws (sizes 4 through 14) and Hex head bolts (No. 10 through 5/16") from wood, plastic or metal when the head has been sheared off. Use any 3/8" variable-speed, reversible drill, and the self-centering bit tip will prevent wondering and walking. Flip the bit, and use the screw end to extract the screw or bolt. Set Includes:ProGrabit #1 Bit â€" Screws No. 4-7; Bolts No. 10ProGrabit #2 Bit â€" Screws No. 8-10; Bolts 1/4"ProGrabit #3 Bit â€" Screws No. 11-14; Bolts 5/16"
From the Manufacturer
Pro Grabit 3 piece extractor kit works on damaged screws and broken bolts from as small as No. 4 screw to as large as 5/16 in. bolt. Quickly and easily removes most damaged screws such as Hex, Phillips, Torx, Square Drive; sizes No.4 - 14 from wood, plastic or metal up to 3 inches in length. Two-step drill bit and extractor in one tool extracts broken bolts and damaged screws fast; use in reverse only when drilling and extracting with reversible hand held power drill. Can drill up to grade 8 or 10.9 class fasteners; extracts bolt sizes No. 10- 5/16 in. (5mm - 10mm). Serrated extracting end of tool results in greater torque for hard to remove bolts and screws. No bolt preparation required. Professional grade multi-purpose extractors compatible with "quick-connect" chuck systems or chucked directly into drill. Good for multiple extractions with single tool.