The Armstrong Tools 37209 (often cataloged as part number 37-209 or ARS37209) is a discontinued, high-quality industrial 1/4" drive, 9mm metric deep 6-point socket with a polished chrome finish. Product Specifications Drive Size: 1/4 inch Socket Size: 9 mm Socket Type: Deep well Configuration: 6-PointFinish: Polished chrome Manufacturing Origin: Made in the USA (Armstrong Tools ceased production entirely when its parent corporation, Apex Tool Group, closed the brand).