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Greenlee's Knockout Punch & Driver Kits are ideal for DIY enthusiasts and professional contractors working on a range of home improvement projects. With punch hole diameters that accommodate various materials, these kits offer the perfect solution for electrical, plumbing, or HVAC tasks. The round punch shape and hydraulic operating method make it easy to use while providing efficient results. Plus, with maximum capacities up to 12 gauge stainless steel, you can be confident in your ability to tackle any project. Whether you're installing new wiring, cutting holes for pipes, or knocking out panels for electrical access, these kits have you covered.