I'm writing this from a bit of a niche market but for my use these bits are great. Hotwheels and other die-cast vehicles are held together with rivets, which are the easiest to drill out. These bits are the right size and material to easily remove these rivets allowing models to be taken apart. If you like it, this is a great budget set to start with. The only downside is that the bits weren't perfectly centered, but not so much that they couldn't do their job.