Review on 🔧 Park Tool BBT-30.4 Press Fit Bottom Bracket Bearing Tool Set - Versatile Compatibility with BB30, PF30, and More! by Andrew Jenkins

It's easy to use but can be awful for taking a hammer on your bike (via the tool). If you're stuck with an extremely squeaky BB30 (the worst invention ever made on a bike), you need this tool to remove the bearings so you can try to stop the nasty squeak. Unfortunately, you need to buy another tool to install BB. The BBT-30.4 is expensive because it's basically a fancy stick. Maybe manufacturers will switch to a different BB standard if enough people buy it. Please do your duty and buy it.