If I could only use one tool for the rest of my life, it would be a chainsaw. Sure, it is rater overpowered for most DIY projects and home renovations, but with the right skills, you can harness that power and use it to create something truly wonderful. Plus, with a bit of engineering and know-how, you can transform a chainsaw into a host of other tools, including a power washer. Show me another tool that can do that. In a recent video, YouTuber Make it Extreme demonstrates how to convert a chainsaw into a pressure washer.