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A. It is a three-piece R16 roller set for 28tpi British threads, used with Silbertool 01421600 thread reformer to restore BSW, BSF, BSPP and BS threads.
A. It supports BSW, BSF, BSPP and BS thread forms, all at a pitch of 28 threads per inch.
A. The reformer provides controlled pressure and alignment while the rollers define the correct thread form and pitch.
A. When repairing British-threaded fasteners identified as 28tpi, such as certain BSW, BSF, BSPP or BS fittings.
A. Store it clearly labelled by pitch and standard in a compartment near the thread reformer and other roller sets.
A. Correct pitch alignment ensures the rollers track existing grooves accurately, avoiding further thread damage during reforming.
A. It allows damaged British threads to be restored instead of replacing bolts or components, reducing waste and expense."
A. It is specifically designed for use with the Silbertool 01421600 thread reformer body.
A. The pack measures around 53 x 15 x 17mm and weighs about 0.019 kilograms.
A. No, they are specifically designed for British thread forms and should not be used on other standards.
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