8pc SERPENTINE TIMING BELT TENSION TOOL KIT Idler Pulley Crow Foot Socket Wrench

8PC Serpentine Belt Tension Tool 1/2" 3/8" Square Universal Belt Removal Wrech. 8pcs Serpentine Belt Tension Setting Wrench Tool is designed to aid in the removal and installation of serpentine belts on engines that have spring-loaded idler pulleys.