In a cutting tool, what is the cutting end typically referred to as?

The cutting end of a cutting tool is commonly referred to as the "nose." This part of the cutting tool performs the primary function of engaging with the material being machined, allowing for the removal of material to shape the desired component. The term "nose" is specifically used to describe the very tip or the end of the cutting tool where the cutting action occurs, which is crucial for initiating the cutting process.

In contrast, the other terms refer to different features or aspects of the cutting tool: the end cutting edge refers to the edge used for cutting along the end of the tool, while back rake and side rake are terms that describe the angles and geometry influencing how the tool interacts with the workpiece, affecting the cutting efficiency and the forces acting on the tool. These elements are important for understanding tool design and performance, but they do not specifically denote the cutting end of the tool itself.