penberth3

I'd go for brush paint, hard to build a up a good thickness with spray. Apart from that it's no different to any other re-painting job...

We have seen your welding it's most probable that should you attempt such a task that you would burn a hole big enough for the screw to...

Welding and grinding inside a tube? Good luck with that!

No chance. You'd never get a drill chuck tight enough. Use Vise-grips.

Vise-Grips, if there's enough to grip? If not either drill it out, not easy, or brute force - punch it through then make good the damage!

That would be my worry. I don't understand smart chargers so I wouldn't try it. Solution is to buy a charger with a higher output if...

Suspect that the chargers will "Fight" each other as being "Smart" they will each see the output of the other. No?? :unsure: 😵‍💫

Buy drills in 10's for the useful sizes. It would save a lot of space and weight. Do the sharpening in the comfort of your home.

Hang on, these are brand new, worn twice. They shouldn't need that sort of treatment.