Left Handed Drill Bits and Screw & Bolt Extractors These Drill Bits and Screw Extractors are used to together to remove broken bolts, studs, socket screws, and fittings. The Left-Hand Jobber Drill Bits are made of M-7 Super High Speed Steel and designed for use in left hand rotation. Features a left hand helix for screw machineapplications where spindles rotate counter-clockwise. The Spiral Flute Screw Extractors set are made from rugged, alloy steel to handle the stress of removing broken bolts, studs, socket screws and fittings. They are tapered, left hand spiral flutes that grip screws firmly. |