Features:- Heavy Duty Full sized tool - Top quality, designed for professional use - A perfect tool to remove stuck on wiper arm or battery terminal - Tighten knurled cone to force jaws under the cable clamp - Turn center screw to lift clamp off terminal - Also removes bolted-on windshield wiper arms that fit over a tapered spline - The puller screw pad is designed to fit the top of the spline post for easy pulling In.