So you're saying that one really should buy the Shimano tool for correct fit/function on the Shimano lockrings? Or hunt around for a non-bike tool? This brings me back to my initial premise - Shimano & proprietary parts/tools. And yes, I know about Campagnolo starting this idiocy. But I figured with Campy, you're not buying a tool. You're buying a name. I have one Campy tool - the dust-cap remover for their Record pedals. Cost me $5.00. It says Campagnolo on it! Weee!! LOL. I think I even used it once...

As for Shimano - let the boycott begin!