Features and Benefits: 
Truck air brake adjusting wrench set
Used for adjusting automatic slack adjusters
Fork-end designed tool able to fit securely under the pull pawl, allowing hands-free operation to release the tension button
5/16" offset square reversible wrench with E-Z Grip handle for adjusting the brake, and capable to release the anti-reverse mechanism without prying
1 Year Warranty on Material and Workmanship