I've been using a Shimano cassette/bb tool and 24mm Park Cone wrench for my Centerlock rotors, but they are rather heavy and cone wrench can't take 40Nm.

So I was looking for an alternative and found this Wolftooth Packtool. The wrench has 1" Hex for their inserts or other brand tools with 1" Hex ends and the other end is standard external bb tool. Another cool feature is that Hex-end has three magnets that snap the inserts of their tools. Brilliant! Not to mention the wrench weighs 99g and cassette insert weighs 31g.

I think this will benefit people here more than anybody.