Many people have a can of WD-40 somewhere in their home for when they need to loosen a stuck bolt or use it as some other lubricant. However, the versatile product has many more uses than that ...

A handyman should never be without a can of WD-40, just for its lubricating properties and ability to loosen rusted parts. But there’s a whole other way to use it that you might not know about yet.

If WD-40 or vinegar doesn’t work ... While oxalic acid is excellent at removing rust, it can be hazardous due to its corrosive properties. Take the necessary precautions to ensure your safety.