CHROMEplus double ring spanner set, metric, in a case, 12 parts. Supplied = assembled. Model = flank traction. Weight = 2.56 kg. Number of parts = 12 pcs. Fork position = 15 °. Key shape = head pivots 180°. Unit of measurement for width across flats = metric. Tooth = 72 pcs. Product type = double ring spanners. Based on DIN 3113/ISO 3318. FlankTraction profile. Jaw position 15° offset. With lockable joint. Exact gearing with 72 teeth. Head pivots 180°. Very fine satin finish. Chrome-vanadium. In a sturdy plastic case.