What is a flat bottom mill for fishing / milling operation?

A flat bottom mill is a specialized downhole milling tool extensively employed in the oil and gas sector to grind and eliminate undesirable elements, commonly referred to as “junk,” from a wellbore. This type of milling tool is widely recognized for its versatility, capable of handling a diverse range of junk items such as squeeze tools, packers, tubing, bridge plugs, and bit cones.

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