Slack Adjuster Tools Set Feature: -the slack adjuster release tool set includes 2 tool accessories to better install and repair for air braking systems on heavy-duty trucks, long-haul trucks, and trailers; Brake adjustment tool improves brake service -The 5/16" double square ratcheting wrench provides reversible ratcheting action with an angled head for easier operation -Fork-end designed tool able to fit securely under the pull pawl, allowing hands-free operation -Comfortable, E-Z Grip, screwdriver-style handle allows user to apply more turning power with less pressure and fatigue to the hand