Check the listing for details. Sherman-Klove S-K 1/2" Drive FlexHead, 5" Extension & Sockets 1940-early 1960s. Condition: Used. Listed at 60.00 USD. Sherman-Klove began business in the 1910s and its S-K division became well known for automotive hand tools through mid-1960s when the division was acquired by Symington-Wayne. The most significant thing about the acquisition is that S-K tools were then stamped S-K Wayne for several years. This selection of 1/2 Inch Square Drive tools can be found in several catalogs on Archive.org. We’ll reference S-K Tools: Catalog No. 1053 by Sherman-Klove Co. published in 1956 (https://archive.org/details/SKToolsCatalogNo1053/page/n5/mode/2up) which would be near the end of this style. Included in this group are: 41653 Flex Head/17 Inch Extension 40161 5 Inch Extension12 Point 401xx series 40116 1/2 40118 9/16 40120 5/8 40124 3/4 40130 15/16 40132 1 40134 1 1/1612 Point Deep Socket 408xx series 40820 5/8 40822 11/16 After a half-century of use the Sockets and Flex Head are in very good condition, showing obvious use, but no evidence of abuse or misuse. The 5 Inches long Extension is badly corroded by comparison (see images). Note that the 17 Inches Flex Head can also serve as an Extension (see images). All of the tools can be put to work and only the Short Extension fails the appearance-test for including in a show-and-tell collection. We will ship the S-K bunch by USPS Priority Mail on the next regular business day following receipt of payment.