Set of open end wrenches, type Bernstein 6-750. 6-piece, made of chrome vanadium, bright nickel-plated, extra thin. Sizes: 3.0 x 3.5 mm, 4.0 x 4.5 mm, 5.0 x 5.5 mm, 6.0 x 6.5 mm, 7.0 x 8.0 mm and 9.0 x 10 mm. Wrench lengths: up to 6.0 x 6.5 mm = 120 mm, as of 7.0 x 8.0 mm = 125 mm. Material thickness: up to 6.0 x 6.5 mm = 1.5 mm, as of 7.0 x 8.0 = 2.0 mm. Wrench set in a case.