The 1/2 inch extensions are crafted from chrome vanadium steel and finished in high chrome. This product is for manual use only. ISO 3315, DIN 3122, ISO 1174-1. The Britool BRIE117261B Extension 1/2in Drive has the following dimensions: Length: 250mm (10 in) Weight: 405 g https://elecena.pl/product/27240476/expert-e117261-extension-250mm-1-2in-drive 2024-11-12 https://elecena.pl/product/27240476/expert-e117261-extension-250mm-1-2in-drive 2025-03-13 https://elecena.pl/product/27240476/expert-e117261-extension-250mm-1-2in-drive 2025-03-25 https://elecena.pl/product/27240476/expert-e117261-extension-250mm-1-2in-drive 2025-09-20