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A. It is a three-piece left-hand metric roller set for 1.75mm pitch threads, designed for the 01421600 thread reformer.
A. It is designed for left-hand metric thread profiles, whereas the standard set serves right-hand threads.
A. It is used with the Silbertool 01421600 thread reformer.
A. When repairing left-hand metric threads with a 1.75mm pitch.
A. No, using LH rollers on right-hand threads can damage threads rather than repair them.
A. Store them labelled “R16-1.75mm LH” separate from right-hand roller sets.
A. Because left and right-hand threads have mirrored profiles that require matching roller geometry.
A. It allows those fasteners to be reconditioned, preserving original hardware in specialised assemblies.
A. Clean thoroughly, prevent corrosion and inspect for chips or wear on roller surfaces."
A. It measures about 53 x 15 x 17mm and weighs approximately 0.019 kilograms.
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