Impact Nut Extractor and Driver, Measurement System Metric, Fastening Size 11 mm, 7/16 in, Tool Insertion Size 1/4 in Hex, Overall Length 2 9/16 in, Impact Rated Yes, Magnetized Tip No, Finish Black Oxide, Material Chrome Molybdenum Alloy Steel, Slide to Clean No, Number of Nutsetters Included 1, Tool Brand GEARWRENCH