A & E's 7/16" Automatic Slack Adjuster Wrench (Part no. 7578) is a chrome-plated, extra-long wrench used for brake adjustment on heavy-duty trucks equipped with Haldex slack adjusters. Some of the made in the USA wrench's features include a 7/16" single hex wheel that fits the drive on Haldex slack adjusters, a vinyl grip for comfort and its extra long handle is excellent while overcoming the anti-reverse mechanism (22-25 lbs./ft.).
