Screw Extractors remove broken or seized screws. Two main types are Spiral Flute extractors also called Easy out and Straight Flute. To remove a broken screw pre-drill in the center of the screw head. This will be the start point for the extractor tip. Spin counter clockwise with some pressure until you feel the threads bite. Once the screw starts moving you may like to use pliers to aid in the removal. Screw Extractors are available in Sets or individually by Gray ITC and Jet.