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A. It is a roller set for R60 and R110 thread reform tools, configured for unified threads with a pitch of 18 threads per inch.
A. They choose it when repairing external unified threads, such as UNF or UNEF, that use an 18 tpi pitch on shafts or fasteners.
A. The rollers are fitted into the R60 or R110 head following the pattern specified for 18 tpi unified thread geometry.
A. Each pitch has its own spacing and flank profile, so a matching roller set is needed to reshape threads accurately and safely.
A. The set is supplied in a compact pack around 50 x 50 x 50 mm, clearly labelled for easy identification.
A. Yes, provided the external thread is 18 tpi and the diameter falls within the capacity of the R60 or R110 thread reform tools.
A. They should measure with a thread gauge marked in threads per inch, confirming an 18 tpi reading before choosing the rollers.
A. It restores damaged unified threads without cutting material away, helping maintain original dimensions and strength of the component.
A. Remove any debris, apply a thin film of oil and return them to their labelled container with other unified roller sets.
A. Yes, it can be used wherever 18 tpi unified threads need non-cutting restoration within the tool’s range."
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