Bike Tools
The unique design of the offset break wrench allows them to be used in tight places, such as centering caliper brakes. OBW-3 has a 14mm opening, and the other end fits into the tension springs to rotate the brake on its bolt.
Product Page: https://www.parktool.com/product/offset-brake-wrench-obw-3
Related Article-Side Pull Brake Service: https://www.parktool.com/blog/repair-help/sidepull-brake-service