Premium Injection molded case with carbon fiber EVA foam inserts Designed to GRIP up to 100% rounded fasteners Replaces standard NON -tapered/twisted extractors and prevents thread binding during extraction Able to remove rounded/damaged socket cap screws, bolts, threaded pipes, button screws, nuts, broken studs, lug nuts, grease nipples, and much more Comes with FORS sleeve to remove extracted objects from the extractor Laser markings for greater visibility Bi-Directional Design enables loosening and tightening of new and damaged fasteners Designed to be hammered onto object that is being extracted 6-point hex allows multiple drive options Sizes Included - #1, #2, #3, #4, #5, #6, #7 and includes LEFT HAND drill bits for each extractor