Irwin 53226 10-Piece 1/8-Inch to 13/32-Inch Hex Head Multi-Spline Screw and Bolt Extractor Assortment in Plastic Case

Extractor size and recommended drill bit size are etched on each tool for easy identification | Includes 1-8" through 13/32" | Aggressive left hand spiral design for extra gripping power | Included in a plastic molded case | 10 piece setAmazon.ca Product Description Screw Extractor Set, Multi-Spline, Number of Pieces 10, For Removing Studs, Bolts, Screws 1/8" to 13/32", High Carbon Steel, Includes Multispline Extractors 1/8" - 13/32" From the Manufacturer Professionals all say the same thing. It's tough to get a good grip on a frozen fastener. Rounded-off or broken heads, snapped studs, damaged socket screws and fittings. Here's a great set of extractors! These are made for higher torque applications, with multiple strategically placed splines. The extractor turns your socket or flat wrench into a powerhouse tool. Use it when space is limited, or if you need to get a good grip without drilling a deep hole in the fastener.