ITEM NAME:Dual-use Damaged Screw Extractor Drill Bits Guide Broken Bolt Stud Remover #gib Store Home Promotion Hot Item Add to Fav.1 X Extractor. Multi-functional, also suitable for ordinary screw removal. It can be used for the purpose of removing and cleaning pipeline broken wires during pipeline maintenance. Use: use the anti tooth principle and the assist rod to take out the screw of the broken water pipe.