Screw Extractor Set Extractor Type Spiral Flute Screw Extractor and Drill Bit Number of Pieces 12 Drill Size 1/4 in 13/32 in 17/64 in 5/32 in 5/64 in 7/64 in For Bolt Size #8 to 1 in Material - Machining Carbon Steel Overall Length 2 in 2-3/4 in 2-3/8 in 3 in 3-3/4 in 3-3/8 in Container Type Pouch in Tube Drive Type Square