The SW Stahl wrench has sizes of 10 mm and 11 mm, with the following dimensions: width 22 mm, height 7 mm, and a length of 140 mm. This hexagonal wrench is specifically designed for work on brake lines. Brake lines should be regularly checked, as metal lines are often prone to corrosion. For many brake fittings, it is advisable not to replace the SW Stahl brake line wrench with another type of wrench, such as an open-end wrench. A brake line wrench is best suited for tasks such as loosening fittings on the master cylinder, brake calipers, or wheel brake cylinders due to its special shape. Using other wrenches poses the risk of damaging the screws. The brake line wrench conforms better to the fitting due to its unique hexagonal profile, making it more gentle on the material. Our line wrench is made from high-quality chrome-vanadium steel. It features a special alloy, where the addition of chromium and vanadium creates a composition that is particularly distinguished by its hardness and strength compared to other steels.