Which element is NOT part of the tool geometry for a single point cutting tool?

The correct answer is the cutting speed angle, which is not part of the tool geometry for a single point cutting tool.

To understand this, it is important to first define what is meant by the tool geometry of a single point cutting tool. This geometry encompasses the various angles that define how the tool interacts with the workpiece during machining. Key elements of this geometry include angles such as the end relief angle, which allows the tool to avoid dragging against the workpiece; the side rake angle, which influences the cutting edge's effectiveness and chip flow; and the nose radius, which affects the tool's strength and surface finish of the machined part.

The cutting speed angle, on the other hand, is more related to the operation of cutting rather than the tool's physical geometry. It pertains to the speed at which the cutting tool moves relative to the workpiece rather than the specific design characteristics of the tool itself. Therefore, it is not typically classified as part of the tool geometry.

This differentiation helps clarify the complete role each element plays in the functioning of a single point cutting tool. The elements pertaining to geometry directly influence the design and effectiveness of the tool, while operational parameters like the cutting speed angle pertain more to the machining process rather than the