American dimensions. With knurling. Surface: chrome-plated, polished. Made in Germany. Drive: Square, hollow 12.5 mm (1/2 inch). Output: Outside 12-point traction profile. Wrench size: ∙ 7/8 ″. Dimensions / length: 41.5 mm. Diameter d1 (output side): 30.4 mm. Diameter d2 (drive side): 26 mm. Net weight: 0.1 kg. For manual operation.








