Single-point tool terminology: “The part of the tool on which the cutting edge is formed is called the nose.” — Evaluate the correctness of this statement.

Introduction / Context:
Accurate nomenclature is essential for tool grinding and setup. Mislabeling tool regions leads to confusion in specifying rake, relief, and nose radius. The statement conflates general cutting edges with the localized tip geometry called the “nose.”

Given Data / Assumptions:

• Standard single-point turning tool with major and minor cutting edges.
• A defined nose (tip) typically with a nose radius joining the edges.
• Tool faces: rake face and flank faces where edges are formed.

Concept / Approach:
The cutting edges are formed by the intersection of the rake face with the flank faces (major and minor). The “nose” is the region at the junction of these edges, often blended with a radius to improve finish and distribute stresses. Therefore, the nose is not the whole surface “on which” the cutting edge is formed; rather, it is a specific small area at the tool tip that participates in finishing and corner strength.

Step-by-Step Solution:

Verification / Alternative check:
Tool signature charts (ASA/ISO) list separate parameters for side/ end relief and back/ side rake, plus nose radius — confirming noses are distinct features, not the entire edge-forming faces.

Why Other Options Are Wrong:
Conditionally “correct” answers (for specific tool types or orthogonal cutting) remain incorrect; the definition of nose is consistent across tool materials and cutting modes.

Common Pitfalls:
Calling any rounded edge “the nose”; in fact, the nose is the corner region only, and excessive radius can cause chatter or size errors if not matched to feed and rigidity.

Final Answer:
Incorrect