When I first started, I bought a few basic tools and glue tabs because they were affordable. I used them maybe twice and honestly didn’t touch them again. In my opinion, if you’re just trying PDR out to see if you like it, that’s a solid place to start. But once you realize PDR is something you really want to pursue, you’ll naturally want to upgrade. I recommend investing in a good knockdown, a few quality tips, a blending hammer, a double-bent screw-on tip tool, and of course, a PDR light. Start with two door tools and focus on one thing above all else: practice, practice, practice.