AS TOOL CENTER 5pcs HSS Easy Out Broken Bolt Extractor Kit Allows the bolt remover to work with rusted, cracked, damaged or stripped screws

5 x Broken bolt extractor with magnetic extension screw holder, screw extractor size includes #1 for 1/8"-1/4", #2 for 1/4"-5/16", #3 for 5/16"-7/16", #4 for 7/16"-9/16", #5 for 9/16"-3/4". Clever Design?Reverse thread bits spiral design for extra gripping power. Spiral flutes are designed to embed themselves deeper into the metal as you turn the tool, so as the fastener resistance increases, the screw extractor's grip increases. Simple to Use?First attach drill bit(Dr) to the extension bit holder, then the drill should be moving the bit counter clockwise(and please use the slow speed), finally use the screw extractor(Ex) side to remove the screw-bolt. ?Wide Application?Allows the bolt remover to work with rusted, cracked, damaged or stripped screws, studs, bolts, fastener or nut for easy operating. Perfect for all homeowners, woodworkers, mechanics, artists, hobbyists etc