Which tool type is associated with indexing to reveal a fresh edge for continued use?

Which tool type is associated with indexing to reveal a fresh edge for continued use?

• A. Carbide insert
• B. End mill
• C. Reamer
• D. Tap

Answer: (A)

Indexing is the ability to rotate to a fresh cutting edge on a tool. Carbide inserts are designed with multiple cutting edges on one small piece; when one edge dulls, you index the insert to expose another sharp edge. This lets you keep using the same insert for longer without changing the tool body, which is exactly why this tool type is associated with indexing to reveal a fresh edge for continued use. Other tools like end mills, reamers, or taps aren’t intended to be indexed for multiple new edges in routine use; they’re typically re-sharpened or replaced when worn.

Indexing is the ability to rotate to a fresh cutting edge on a tool. Carbide inserts are designed with multiple cutting edges on one small piece; when one edge dulls, you index the insert to expose another sharp edge. This lets you keep using the same insert for longer without changing the tool body, which is exactly why this tool type is associated with indexing to reveal a fresh edge for continued use. Other tools like end mills, reamers, or taps aren’t intended to be indexed for multiple new edges in routine use; they’re typically re-sharpened or replaced when worn.