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

They just work and are solid construction.

Great!

Overall a solid design. To get the proper torque I used a 1in dewalt 1/2 impact socket and a 1/2 torque wrench. Zero issues, and Muhammad better with todays thru axles having the 12mm stud.

Works great for centerlock rotors and cassettes on 12mm through axle wheels.

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.

Quality seems good it worked perfect for my sram xd cassette

Quality product. Needs a 1” tool. I used a socket. Would have preferred that it fit directly on my socket wrench.

Works like a charm for the newer Shimano centerlock disc brakes and rear axle with thru-axle applications.

Did the job

Works great