I cannot get this thing off. I have the lock technology tool:


The slots on it do not fit the tabs on the sides of the ring securely, so it slides a little. The metal also flexes slightly. I broke off one of the tabs with the tool

I've tried a wide head screwdriver as well, but only succeeded in removing the tops of a couple of the tabs.

Any suggestions? This thing is on tight!

Anyone in the Twin Cities metro area have the OEM tool that I could borrow?

Thanks