Product Description
Sioux Valve Grinder Stone Dresser - For Machines with 4" Stones
Replacement Stone Dresser for Sioux Model 622, 624, 645, and 6024
valve grinders. It comes complete with new diamond dresser tip as pictured.
*This will require a 1/2" to 3/4" inch longer 3/8" stud than what is currently on your machine