BCentury Drill and Tool 73415 Spiral Flute Screw Extractor Set, 5-Piece ReviewbP PP Century Drill and Tool 73415 Spiral Flute Screw Extractor Set, 5-Piece PSpiral screw extractors are used when a screw or bolt has broken off while still in the fastening holeP5 Piece set includes #1 #2 #3 #4 and #5 screw extractorsPEasily removes 332-Inch to 58-Inch broken bolts and screwsPMade of hardened tempered alloy steelP