Additional technical information: DIN 838, ISO 3318, ISO 1085, ISO 10104 Low-offset, with thin-walled rings GEDORE Vanadium Steel 31 CrV3, chrome-plated Anti-glare, matte surface Carefully forged and professionally processed: Ring: thin, low-offset and 5°, with UD-profile for gentle power transmission High flexural stiffness-breaks or sliver not overload and therefore minimises the risk of injury Overload is displayed by deformation For extremely deep-lying or counter-sunk nuts High-grade industrial quality for tough continuous stress ; DIN standard: DIN 838; Material: Chromium-vanadium steel; Product size (length): 212 mm; Spanner size (metric): 12 mm, 13 mm