The Park FR-5 freewheel removal tool is a shop standard tool that gets used everyday here at Tree Fort. This tool is constructed from a heat treated hardened steel that should keep it in your toolbox for years to come.
It features a standard 12 spline interface that will fit most common lock rings from a long list of manufactures. The wall thickness has also been reduced to allow for remove of lock rings without having to remove the cones or locking nuts on some hub designs.
Additionally this tool can also be used to install and remove most Shimano compatible centerlock disc rotor lockrings.
Chris King and many others
Notes: Park recommends you always use a the quick release skewer or axle nut to hold this tool in place while removing a cassette or rotor.
Additional Tools: Use of a chain whip is needed to remove a cassette. Here's a few that might suit your needs.
Item did not fit in Shimano cassette at first. I had to work it in for about 3 or 4 min. There was some uneven material in the teeth of the tool. However, once I got it in, it did what it was designed to do.