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Hello, I'm Dennis Bandy, owner of Wise Auto Tools and a Master Automotive Technician with many years of hands-on experience in the shop. Over the years, I've fielded plenty of questions from mechanics and DIYers about materials for tools and repairs, and one that comes up often is whether stainless steel is basically carbon steel treated with some kind of rust-preventative coating. Let's set the record straight on this, and I'll explain why understanding the difference can make or break your thr …