What is the key difference between drilling and boring?

The distinction between drilling and boring is fundamentally based on their respective functions and outcomes regarding holes in a workpiece. Drilling is the process of creating new holes, typically from scratch, in a material to a specified depth, often using a drill bit. This process results in holes that may vary in size and depth based on the drill bit used.

On the other hand, boring is specifically intended to enlarge existing holes that have already been created, refining their diameter and depth to achieve precise specifications. This operation often utilizes a boring tool which can adjust to achieve a smooth, accurate finish in the hole.

Understanding this key difference clarifies the reason why the statement is correct: drilling is primarily about the creation of new holes, while boring focuses on modifying and enhancing pre-existing ones. Thus, this operational distinction is essential for various manufacturing and machining processes.