Lang Tools Automatic Slack Adjuster Release Tool and Wrench - Heavy Duty Truck Brake Adjustment Kit for Semi Trailers & Commercial Vehicles - Perfect for Mechanics and Fleet Maintenance

These tools are used for adjusting rockwell automatic slack adjusters The set consists of a forked-end tool to release the tensioner button, and a 5/16” double square offset reversible wrench with e-z grip handle Insert the release tool under the button of the pull-pawl to disengage the anti-reverse mechanism on the slack adjuster (Spring tension of the pull-pawl will hold the tool in place.) Then use the wrench to adjust the brake to drum clearance Comfortable, e-z grip, screwdriver-style handle allows user to apply more turning power with less pressure and fatigue to the hand