Screw Extractor Set, Extractor Type Spiral Flute Screw Extractor, Number of Pieces 6, Drill Size 1-1/16 in, 13/16 in, 17/64 in, 23/64 in, 31/64 in, 39/64 in, For Bolt Size 1-1/8 in to 1-1/2 in, 1-3/4 in to 2-1/8 in, 1-3/8 in to 1-3/4 in, 11/16 in to 15/16 in, 15/16 in to 1-1/8 in, 9/16 in to 3/4 in, Material - Machining High Speed Steel, Overall Length 3-3/4 in, 3-3/8 in, 4-1/8 in, 4-3/8 in, 4-5/8 in, Container Type Wood Block, Drive Type Square