Combination open-end wrench set, metric, ISO 691, ISO 7738, ISO 3318, ISO 1711-1 and DIN 3113, high-performance steel alloy, U-shaped shank ensures greater comfort, 15° jaw position with thin head for improved accessibility, double hexagon with dynamic Drive profile ensures that the screws and nuts have a longer service life, ring side is angled at 15°, larger size markings on both sides for easy identification, chrome-plated micro-matt design ensures a high-quality surface, patented U-shape, in a black plastic case, contents 8, 9 10, 11, 12, 13, 14, 15, 17, 19, 22mm