Man, I always figured left hand bits were a gimmick for guys with too much money in their toolbox. Then my neighbor snapped a bleeder on his old F-150 and I watched him spin it right out with one of those bits. The drill grabs the broken piece and walks it out the same way you screwed it in, no drilling a hole or fighting an easy out that just snaps off. I was wrong about them, plain and simple. A cheap set of reverse bits has saved me more grief than half the fancy tools I own.