This is a brake clevis pin press. This tool is made to shear off the cotter pin as the clevis pin is easily removed. This tools spring loaded plunger positions itself automatically over the brake clevis pin. This press is made to fit almost all makes and models of truck and trailer slack adjuster brake clevises. This is an universal tool made to work on most class 6-8 trucks and equipment such as: Kenworth, Peterbilt, Freightliner, Mack, Volvo, etc. This tool is made as a direct replacement of TG 10501.