whats the best wire wheel to use for cleaning the under side of a car every one ive used are like darts and come flying apart ?

 

I got a box of 24 off ebay. They arent bad either. Were about 15quid iirc

Just search ''wire wheels 24'' on ebay

 

do they fly apart and stab the hell out of you i had some a while ago i used whist crouching down when i stood up i had 100s of the wire stuck in my legs
is there any thing else that can be used to clean the underside back to bare metal easy ?

 

After a while but that is going to happen with 99% of them. I have used an aggressive one I bought from a local store with massive bristles that I put on a grinder, and it removes underseal with no problem what so ever, but it leaves a little residue it gets it that hot. You could try a heat gun and chisel. That's what I did, and It wasnt too bad to be fair