Welding polished stainless steel often causes a particular type of "rainbow" discoloration. This month's column tells you how to remove this coloring. I am making a stainless exhaust system and I'm ...
I had to drill 16 blind holes that were 0.101 in. in diameter and 0.300-in. deep in parts made of 316 stainless steel. I tried high-speed steel, carbide and cobalt drills, but all of them broke before ...
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