Siegen Socket 21mm 1/2″Sq Drive by Sealey WallDrive® Chrome Vanadium Steel Part of the Siegen by Sealey range of quality tools at competitive prices. Chrome Vanadium steel socket. Hardened and tempered for added strength. Chrome plated and mirror finished. WallDrive® socket configuration.Specification: Model No S0658 Brand: Siegen by Sealey Depth: Standard Drive: 1/2″Sq Material: Chrome Vanadium Steel Nett Weight: 0.0725kg Size: 21mm Product Guarantee: Lifetime GuaranteeCatalogue Page: Page 29