The open-end wrench has a key width of 26 mm, a drive square of 1/2 inch, is matte chrome-plated, and made of chrome-vanadium steel. This wrench is a professional tool specifically designed for work on brake lines, but it is also suitable for fastenings on air conditioning systems, pneumatic and hydraulic lines, as well as oil pressure switches. For many fastenings on the brake, it is advisable not to replace the open-end wrench with another type of wrench, such as a spanner. The square key is particularly effective for loosening fastenings on brake lines due to its special shape. Using other wrenches may risk damaging the screws. The open-end wrench conforms better to the fastening due to its edge profile, making it more gentle on the material. Due to its unique shape, our line wrench is also referred to as a crow's foot. Its square cut-out allows it to be operated with a 1/2 inch ratchet or any other handle, facilitating easier and faster work.