Mechanics and DIY car enthusiasts, this puller tool is one of those specialized tools that makes specific jobs so much easier. It's designed for two main tasks: removing stubborn battery terminal clamps without damaging the battery posts, and pulling off windshield wiper arms that are stuck on their splines. Made from durable 45# carbon steel with heat treatment, this thing is built to last through years of use. The jaws open from 6mm to 28mm, handling most wiper arms with outer diameters up to 40mm. Using it is straightforward - for battery terminals, you tighten the knurled cone to force the jaws under the clamp, then turn the center screw to lift it off smoothly. For wiper arms, it provides the leverage needed to pop them loose without bending or breaking anything. The sprung-loaded arm design ensures consistent pulling power, and the construction feels solid in your hands - no cheap, flimsy metal here. This is the kind of tool you might not need often, but when you do need it, nothing else really works as well. Perfect for professional mechanics who want to work efficiently without damaging customer vehicles, or for serious DIYers who prefer having the right tool for the job. If you've ever struggled with corroded battery terminals that won't budge, or wiper arms that seem welded in place, you'll appreciate how this tool makes quick work of what would otherwise be a frustrating struggle. It's one of those 'why didn't I get this sooner' tools that pays for itself the first time you use it on a job that would have taken ages without it.