Application： The Windshield Wiper Arm Removal Tool is of a heavy duty construction with a locking feature allowing the tool to be fastened securely to the wiper arm before commencing pull. Combination of swivel mounted thrust bearing and tommy bar allow even the most stubborn wiper arms to be lifted off their drives, this simple tool with adjustable arms makes a tricky task easier without risk of damage to the wiper arm when removing. The Battery Terminal Removal Tool is also suitable for battery terminal and alternator bearing removal. Features: 1.Universal suitable for battery & alternator terminals&bolted-on windscreen wiper arms 2.Heavy duty construction 3.Locking Feature 4.Thrust bearing with Tommy bar 5.Simple and easy to use Specifications: Jaw opening size: Minimum opening : 6mm Maximum opening : 36mm Maximum collar size : 43mm How to Use: 1.Easily removes stuck / seized battery terminals & bolted-on windscreen wiper arms that fit over a tapered spline. 2.Tighten the knurled cone to force jaws under the cable clamp. 3.Turn the centre screw to lift the clamp off the terminal. 4.The puller screw pad is designed to fit the top of the spline post for easy pulling.