Recently something has popped up in my amazon feed that I thought was interesting. It was a "portable" lockring removal tool. Specifically, this one.

LINKY

I didn't know these things existed, but the question I have is this.

How do you tighten the lockring once you've removed it and supposedly replaced the spoke? Do you still need to carry a park tool cassette removal tool and a wrench? I mean, those things go on really freaking tight, no way you could do it by hand without the proper tools. So, sure, this tool will be great for removing the lockring, but with no way to tighten it... it's kinda useless right?