Rescue Bit Broken Screw Extractor Removal Tool 5/16" w/1/4" shank The Rescue Bit removes broken E Z outs, screw extractors, taps, bolts and much more. The Rescue Bit cuts, drills and reams all in one motion. Great for removing spot welds. Our 5/16" has a 1/4" shank on the end so that it can be used in a hand drill or die grinder. The size is 5/16" X 3" (5/16" Diameter by 3" Length with the shank being ground to 1/4" and 3/4" in length)