Socket 3/8″, bi-hexagon ELORA 870 is a warm-forged, chrome-plated, and polished socket tool with knurled features. It’s made from ELORA-Chrome-Vanadium 31CrV3 / 1.2208 and has an inner square according to DIN 3120-C 10, ISO 1174, with a ball retaining groove, following DIN 3124 and ISO 2725-1 standards.