It seems like there might be a slight confusion in your question, as "boring" and "drilling" are often used interchangeably in everyday language, but they can have specific meanings in different contexts.

Boring:

In general terms, "boring" can refer to something that is uninteresting or dull. In the context of machining and manufacturing, "boring" refers to the process of enlarging and finishing a hole that has already been drilled or cast. This is typically done with a boring tool to achieve a precise diameter and a smooth surface finish.

Drilling:

"Drilling" is a process that involves creating a hole in a material using a drill bit. Drilling is commonly used in construction, metalworking, woodworking, and other industries. The primary purpose of drilling is to create holes of various sizes and depths in materials such as metal, wood, plastic, and masonry. In summary, while "boring" can refer to something uninteresting in a general sense, in the context of machining, it specifically refers to the process of enlarging and finishing a hole. "Drilling," on the other hand, refers to the process of creating a hole using a drill bit.