I was using this until recently. The wrench part is slightly warped, but I think it's at a level where it doesn't affect use. (Please check the images) Please refrain from purchasing if you are sensitive to the condition, as there are individual differences in how it feels to use. Features: - The direction can be switched with a pin. - Beautiful hard chrome plating. - The wrench part has a non-slip design, so it can firmly grip bolts and nuts. - Uses a 72-tooth gear. Product Specifications: Specifications/Standards - Across flats (mm): 10 - Thickness (mm) Wrench: 5.7 - Thickness (mm) Box end: 8.4 - Overall length (mm): 158 - Surface treatment: Hard chrome plating - Across flats (mm): 10