What is the best cleaner and/or lubricant for power tools?

What do you use to polish/coat the top of a table saw? What kind of cleaner and lubricant should I use for cordless and/or corded power tools? What's the best way to restore aged or tarnished metal? The manuals and people I have asked refer to a "mild solution" for cleaning, please expand on this and... show more What do you use to polish/coat the top of a table saw? What kind of cleaner and lubricant should I use for cordless and/or corded power tools? What's the best way to restore aged or tarnished metal? The manuals and people I have asked refer to a "mild solution" for cleaning, please expand on this and maybe suggest what types of chemicals would deliver the strongest and best results.
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