Professional Quality, sockets manufactured from chrome vanadium steel hardened, tempered and chrome plated for corrosion protection. Chamfered end allows positive nut location and entry. Hole for driving accessory with locking pin. Some socket sizes have knurled band for extra hand grip. Sold loose. Manufactured to DIN 3124/ISO 2725 and DIN 3120/ISO 1174 Specifications https://elecena.pl/product/27243631/elora-00575-1-5-8-3-4-square-drive-bi-hexagon-socket 2024-11-12 https://elecena.pl/product/27243631/elora-00575-1-5-8-3-4-square-drive-bi-hexagon-socket 2025-03-25 https://elecena.pl/product/27243631/elora-00575-1-5-8-3-4-square-drive-bi-hexagon-socket 2026-04-13 https://elecena.pl/product/27243631/elora-00575-1-5-8-3-4-square-drive-bi-hexagon-socket 2026-07-13 https://elecena.pl/product/27243631/elora-00575-1-5-8-3-4-square-drive-bi-hexagon-socket 2026-08-06 https://elecena.pl/product/27243631/elora-00575-1-5-8-3-4-square-drive-bi-hexagon-socket 2026-08-29