Question

course: wd - 40: cleaning, storage, and maintenance of tools and equipment
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the purpose of a lubricant is to
clean and maintain tools
eliminate moisture
reduce friction and wear
save money on tools
9 of 10

Explanation:

Lubricants form a film between surfaces in contact, reducing friction and minimizing wear - and - tear on mechanical components. This is their primary function.

Answer:

Reduce friction and wear