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A. It is a three-piece R16 roller set for 28tpi UNC, UNF and UNEF threads, designed for the 01421600 thread reformer.
A. It is used with the Silbertool 01421600 thread reformer body.
A. When repairing imperial fasteners known to have 28tpi UNC, UNF or UNEF threads.
A. Store in a labelled container indicating “UNC/UNF/UNEF 28tpi” alongside other roller sets.
A. Incorrect pitch can misalign rollers and damage threads rather than repairing them.
A. It enables damaged threads to be reshaped accurately, reducing scrap and replacement costs.
A. Remove metal debris, keep the rollers dry and inspect for visible damage before reinstalling."
A. It supports UNC, UNF and UNEF imperial threads with a pitch of 28 threads per inch.
A. It measures about 53 x 15 x 17mm and weighs approximately 0.019 kilograms.
A. No, it is specifically for imperial forms; other thread systems use different rollers.
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