Originally Posted by
CliffordK
I'd expect the cassette tool to be good for a good long time. But, that could also change overnight, if 10T cassettes become the new accepted standard.
Their "pack" also includes a few Allen wrenches... that I'm not sure would have a high utility, and the old style Shimano bottom bracket tool (which is slowly heading towards obsolescence... maybe).
The cassette bb tool well be useful the a long while. You also need it for center lock disk lockrings... And even Campagnolo settled on CL as their standard for disc rotors