Impact bolt and nut remover set Material and durability Made of heattreated chrome molybdenum steel for hardness. Provides reliable rust resistance and corrosion resistance for long service life. Lug Nut Remover Kit size and drive 14piece bolt extractor set with 3/8 drive. Sizes include: 1/4', 5/16' (8 mm), 3/8' (10 mm), 10 mm, 7/16' (11 mm), 12 mm, 1/2', 13 mm, 9/16' (14 mm), 5/8' (16 mm), 17 mm, 11/16' and 3/4' (19 mm). Design and performance Universal lobule design suitable for a wide range of nuts and bolts. Nut Extractor Socket features internal reverse spiral flutes that dig and cut into the fastener heads the more they are turned. Operation and ease of use Clamp the hexagonal side with adjustable wrenches, spanners, or vice grip pliers for easy turning. Use scenarios Automotive: remove rounded or damaged lug nuts from wheels without damaging the wheel studs. Industrial and construction: extract seized or rusted bolts in heavy equipment, machinery, or structural components. Home : deal with corroded or stripped bolts on outdoor equipment, fences, or irrigation systems where standard tools fail.