Standard thread forming tools generally have lead chamfers that produce five or more incomplete threads on the leading edge of the tool.

Question

Quizplus · Accepted Answer

Standard thread forming tools typically have lead chamfers that produce two to three incomplete threads on the leading edge of the tool, not five or more. This design helps in gradually forming the thread without cutting, ensuring a smoother start and reducing the risk of tool failure.

Standard Thread Forming Tools Generally Have Lead Chamfers That Produce