What is typical about the drill used in spot drilling?

Spot drilling involves creating a small, precise indentation or starting point for subsequent drilling operations. The drill used in spot drilling is often shorter and sturdier than standard drills. This design is intentional, as a shorter drill minimizes the risk of bending or breaking during the initial drilling of the pilot hole. The increased sturdiness allows for more effective force transfer and less vibration, leading to greater accuracy in placing the hole.

The focus of spot drilling is not to create large holes, hence the choice about exclusivity for large holes does not apply. While spot drills can have different designs, they typically do not possess multiple cutting edges like some other drill types, as their primary function is to establish a precise location for the main drilling process. This highlights the specialized purpose and design characteristics of spot drills in metal cutting applications.