Question:

Process of cutting internal threads in a metal by using a hand tool is known as

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Tap for "inside" (holes); Die for "outside" (bolts/rods).
  • Marking
  • Tapping
  • Reaming
  • Drilling
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The Correct Option is B

Solution and Explanation


Step 1: Concept

Fastening often requires threads to be cut into pre-drilled holes so a bolt can be screwed in.

Step 2: Meaning

Different tools are used for internal versus external threads.

Step 3: Analysis

Tapping is the process of using a "tap" (a hardened screw-like cutter) to create internal threads inside a hole. Cutting external threads on a rod is called "threading" or "die-cutting".

Step 4: Conclusion
The process is called tapping.
Final Answer: (B)
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