The GripEdge Tools G-FORS (Foreign Object Removal System) Extractors feature a patented, non-tapered geometry to enable complete contact with the fastener sidewall and is designed to grip up to 100 percent rounded bolts, studs, cap screws, grease nipples, and more. Extracted objects can be removed from the extractor tip via the included G-FORS pusher sleeve. Each G-FORS Extractor is formed from premium S2 steel for increased strength and durability as well as coated for increased corrosion resistance. All G-FORS Extractors have sizing details laser marked for greater visibility and are hand-use only (not impact-rated). The 14-pc kit includes sizes from #1 to #7 as well as the correct corresponding left-hand drill bits.