SB breakers have been designed to be the most reliable on the market. And even when they need attention, they are easy to service. For example, the double tool retainer bars minimize stress and wear on the working tools. It´s easy to change the working tools thanks to the patented retainer bar lock system and replacing the floating working tool bushing can be done by the operator on-site with standard hand tools. The length of the bushing also provides excellent guidance for the working tool, which means less wear.