Quizz : what's the purpose of this new tool ?

[Christophe Mineau]

Hello,
Good attempt Paul, but that's funflyer who is the closest , even if it's not for a bicycle wheel on the fridge , but for a table saw wheel to be hold in position on the table saw frame :



Actually, I love my new Scheppach, German made table saw, but It is missing a feature that even my previous much cheaper saw had, it is a brake mechanism for locking the wheel used for setting the height of the blade.

It does hold in place place pretty well, but for the last project I did, I had to do a batch of tenons, I cut them laterally with a dado blade, and I need to keep precisely the same blade height setup along a lot of cuts, and it appeared that the wheel had a tendency to slightly turn with vibrations (especially when the handle happens to be on top, its weigh tends to make the wheel turn).

I tried to imagine how I could lock it in position, and I came up with this strange thing, that works pretty well.
The hold does not need to be necessarily very strong, the main purpose is to damp the vibrations.

The advantage with the magnet is that, even when already in place, I can still turn a little bit the wheel, slipping the magnet, for fine tuning the setup, if necessary.

I don't know how I could call that, the "setup wheel locking pepper mill" ?