A single point thread cutting tool should ideally have
A. Zero rake angle
B. Positive rake angle
C. Negative rake angle
D. Point angle
Answer: Option A
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Zero rake angle: It is used for gear cutting or thread manufacturing. Brass and cast iron are machined with zero rake.
Threading is done by a form tool. The forms tool ideally have zero rake angle.
Positive rake angle is required for thread cutting
B is correct