
(System I use it to flame the paint with a blow torch, then wire brush it by hand . Just do it over the spot welds, takes seconds but leaves enough paint in the spot indents to centre perfectly

Anyways, recommended/besterest spot weld drill bit? Tungsten carbide? What size ? 6/8mm ? Will one be enough if I run the drill at appropriate speed so I am cutting and not just spinning and overheating?
Ideas?
Mm?
