∙ Acc. to DIN 3124, ISO 2725-1
∙ Square drive as per DIN 3120 - C 12.5, ISO 1174, with ball retaining groove
∙ Hand-operated, knurled grip
∙ GEDORE vanadium steel 31CrV3, polished, chrome-plated
∙ Sizes 16, 18, 21 mm with hole drilled for tommy bar Ø 8 mm