The AFF 7/16 XL Auto Slack Adjuster Wrench, No. 45020, is designed to aid in the installation and service of Haldex brand air braking systems. The 45020 has a built-in ratcheting mechanism to provide a 360-degree rotational swing for ease of use at any angle, a dipped handle for a comfortable non-slip grip, and an extra-long handle for torquing power to overcome anti-reverse mechanism. It also has a protective sleeve on its drive end to prevent dirt, grime, and other contaminants from entering the ratcheting mechanism. Its deep style 6-pt hex head is ideal for accessing adjusters in recessed areas.