it will always show
i tried this a few times even if there is no contamination it will show.

it's a blind hole
what do you mean "get the arc in the hole to clean"?

how about melting the rod? the welding rod....
or maybe some special rods for brazing

ok excellent and how would you do it?
have a piece inside the hole first then weld? or just fill up with rod?

hey i was wondering
is it gonna show after you machine a WELDED hole? a filled up hole?say 1/2" hole that was filled about 1/2" ??
and which weld is best? TIG?stick? MIG?

hi there
i was wondering if you could help me trying to build this box i have a 3/8" thick plate (11 by )
and i have this square tubing 1/4" thick walls
what;s the best way , or welder , or set up to weld the tubing to the plate?
thank you in advance