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A. It is a metric R36 roller set with 2.5 mm left-hand pitch, provided in packs of 3 for Silbertool 01423600.
A. When repairing heavy-duty left-hand metric threads with 2.5 mm pitch used on specialised fasteners.
A. The pack is about 50 x 30 x 30 mm and weighs roughly 0.085 kg.
A. Some rotating equipment uses left-hand coarse threads to resist loosening, so effective repair tools are essential.
A. Attempt tightening; if it tightens anticlockwise, it is left-hand.
A. Fit rollers firmly, check pitch and direction, lubricate and align carefully with the thread start.
A. It reduces effort, protects rollers and produces cleaner reformed thread profiles.
A. Thorough cleaning, careful handling and dry storage reduce damage risk.
A. Clear labelling avoids mixing left-hand and right-hand pitch sets, preventing misuse.
A. It fills the need for repairing very coarse left-hand metric threads, complementing other pitch sets."
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