I have a lockring tool can't remember who makes it not park I am pretty sure. It has a long handle and you can easily set it in the center of the cassette and then removed the 10 sp hyperglide cassettes. This thing actually slips around after you get the lockring tight. It will get it tight enough I am sure it does take some torque but not gorilla strength, but then the tool will slip in the lockring. ANyone have one of these and have this issue. I am think about simply getting a cheaper lokring tool from park and then use the wrench, this seems a bit under built in diameter.