This professional brake adjustment tool kit is designed for heavy duty trucks, semi trucks, and trailers with air brake systems. The set includes a 5/16 inch double square ratcheting wrench and a fork end release tool, allowing mechanics to service brakes safely and efficiently. The fork end tool fits securely under the brake pawl to release tension without causing damage, while the ratcheting wrench provides smooth forward and reverse action in tight spaces. Made from high strength carbon steel with oversized non slip handles, this slack adjuster tools set ensures durability and comfort during repeated use. It is an essential brake tool kit for truck fleets, repair shops