Irwin t394100 power grip screw extractors set of 7 irwin 394100 p professionals do not want to waste time trying to remove rusted tight or painted over screws they will use the irwin power grip screw extractors p p the power grip screw extractors are supplied in a set of 7 and they will easily remove awkward burred headed and rusty screws p irwin t394100 power grip screw extractors set of 7