Check the listing for details. K-Tool BTK42-11HS Damaged Hex Screw Extractor Set 11PCS. Condition: New. Listed at 27.26 USD. [SPECIFICATIONS] - 11- PC Damaged Hex Screw Extractor Set comes with 1/4"" shank 50mm hex extractors 1.5, 2, 2.5, 3, 4, 5, 6mm. 3 pcs 10mm x 38mm shank screw extractors: HE7, 8, 10. 1 pc 1/2"" Dr x 10mm bit adapter 1/4"" shank 50mm extractors T10, 15, 20, 25, 27, 30, 40. [PIECE OF MIND] - No need to drill holes if the screw holes hasn't been enlarged or fully rounded, just use the tools directly. [HEAVY DUTY] - Made from high grade silicon alloy steel and heat-treated. [ANTI-RUST] - All contents are chrome-plated which provides ultimate anti-rust capacity. Stored in a compact and robust case. [TWIST END DESIGN] - The twist end design can extract the damaged hex screws which haven't been rounded fully. Users can use the tools directly without drilling holes on the screws.