Buy an electric hand tool like a grinder. Get a nice, plastic, case.

But the case does not have room for discs.

It is more a rule than extra ordinary that there isn’t room for drills in a case for a drill, discs for a grinders or sand paper for a sander.

The idea is that when a hand tool manufacturer sends along a case with the tool; the case should also be able to hold necessary parts.
It can’t be that hard. I create wooden boxes for my electric hand tools to keep all the extra stuff.

Why is this necessary?

Because children loves to play with batter torches. But they don’t remember to turn them off. And grown ups are not that keen on buying new batteries.

A remedy could be to have rechargeable batteries. But it still means the batteries get discharged, if not worn out, and there has to be an extra pair to swap with.

I it is 2013 and we still don’t know how to attach big files to email.

If you have sold your soul to Google through Gmail you nowadays have a way; but as a free spirit you don’t.