Park Tool FR-5.2GT Cassette Lockring with Tool 12mm Pin

easy to use. well designed. Not sure you need the blue guide rail, but it definitely is a snug and strong fit to take off the rear cassette.

for removing a cassette on a through axle. The stabilization pin does its job

This tool works perfectly and is just what you would expect from Park.

Another great Park tool!

Using a conventional socket with crescent wrench is very hard, as the socket insists on slipping out constantly because of the shallow depth. The little blue rod on THIS tool fits firmly into the hub hole, anchoring the tool firmly

Nice quality part. Can’t go wrong with this. Definitely recommend.

The way my through axle wheel interfaces with the cassette my old cassette removal tool with only go in about 1 mm and was hard to tighten enough. This thing with the guide pin made a huge difference.

Did the job

Its PARK TOOL...nuff said

Works great, no need to try to keep in in place w the axle when loosening.