Which Park Tool FR-5.2 Lockring Tool Do I Need?

More info: The Park Tool FR-5.2 family of tools consists of four cassette lockring tools that can be used to remove and install most bicycle cassette lockrings, as well as a few other fasteners that you may find on a bike. These tools are made of heat treated alloy tool steel and have 12 splines that are approximately across. This video goes through the four different lockring tools of the FR-5.2 family and helps you decide which is best suited fo