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Q 1. What is the main purpose of the 014216-324 UNC/UNF/UNEF roller set R16-20tpi?

A. It is a three-piece R16 roller set for 20tpi UNC, UNF and UNEF threads, intended for use with the 01421600 thread reformer.

Q 2. When should technicians select the 20tpi roller set?

A. When repairing UNC/UNF/UNEF fasteners whose pitch has been identified as 20 threads per inch.

Q 3. How should this roller pack be stored to remain clearly identifiable?

A. Store it labelled “UNC/UNF/UNEF 20tpi” alongside other pitch-specific packs.

Q 4. Why is accurate roller pitch important in thread reforming processes?

A. Accurate pitch alignment ensures rollers track existing grooves properly, avoiding new damage.

Q 5. How does this roller set help workshops reduce hardware waste?

A. It enables the reforming of worn or damaged imperial threads, reducing the need for new fasteners.

Q 6. What maintenance practices help keep this roller set effective?

A. Remove swarf after use, protect from moisture and check for surface damage regularly."

Q 7. Which thread standards and pitch are supported by this roller set?

A. It supports imperial UNC, UNF and UNEF threads at 20 threads per inch.

Q 8. With which tool is this roller pack used?

A. It is used with the Silbertool 01421600 thread reformer body.

Q 9. What are the approximate dimensions and weight of the roller pack?

A. It measures around 53 x 15 x 17mm and weighs roughly 0.019 kilograms.

Q 10. Can this roller set be used on metric or British threads?

A. No, it is specifically for UNC/UNF/UNEF threads and must not be used on other standards.

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