Bolt Extractor Set, Left Hand Spiral Flute, Number of Pieces 9, For Removing Studs, Bolts, Screws 1/4-3/4 In. & 8-19mm, Drive Size (In. ) 3/8, Includes 1/4, 5/16 (Turns 8mm), 3/8, 7/16 (Turns 11mm), 1/2, 9/16 (14mm), 5/8 (16mm), 11/16, 3/4 In. (Turns 19mm), Impact Rated No