Screw Extractor Set, Extractor Type Multi-Spline Extractor, Spiral Flute Extractor, Number of Pieces 35, Drill Size 1/2 in, 1/4 in, 1/8 in, 11/32 in, 13/32 in, 15/32 in, 19/64 in, 3/16 in, 3/8 in, 5/16 in, 5/32 in, 5/64 in, 7/16 in, 7/32 in, 7/64 in, 9/32 in, For Screw Type Socket, For Bolt Size #3 to #12, 1/8 in to 3/8 in BSP, 1/8 in to 3/8 in NPT, 3/32 in to 15/16 in, Material - Machining Carbon Steel, Container Type Plastic Case, Drive Size 1/2 in, 5/8 in, Drive Type Hex, Tap Wrench.