Lang Tools Kastar 7578 7/16 Inch Automatic Slack Adjuster Wrench Made in USA

The Lang Tools Kastar 7578 is a specialized 7/16 inch automatic slack adjuster wrench designed for servicing Haldex brake systems on medium and heavy duty trucks. It features an extra long handle that provides the leverage needed to overcome the internal anti reverse mechanism, which typically requires 22 to 25 lb ft of torque. The wrench is forged from chrome vanadium steel and includes a reversible ratcheting design for faster adjustments. A protective vinyl boot helps keep contaminants out of the mechanism. Users note compatibility with Haldex, Gunite, Brunner, and most manual slack adjusters, though it is not suitable for Rockwell systems. Handle length varies by source, with measurements ranging from 11 inches to 17.9 inches. Made in the USA for professional durability.