KnKut's USA-crafted high speed steel left-hand step point drill bits, designed for mechanics' length, can potentially replace screw extractors. They loosen studs, relieve pressure, and back out broken bolts. Use these bits with your drill in reverse mode. The split point step design initiates contact, centers itself, and negates the need for a center punch. Gold surface treatment ensures maximum lubricity, while the mechanics length offers a sturdier, shorter construction.