Features and Benefits: Used for adjusting Rockwell Automatic Slack AdjustersComfortable, E-Z Grip, screwdriver-style handle allows user to apply more turning power with less pressure and fatigue to the handThe 5/16″ double square offset reversible wrench features an E-Z grip handleRelease the anti-reverse mechanism without prying and apply more turning power with less fatigue to the hand 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 in.; in.; 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.