Ferrule with thread, long, ID 14 mm (tungsten carbide tip)
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Long ferrule with thread for cylindric shafts with tungsten carbide - widia tip.
Tungsten carbide (WC) is a chemical compound containing powder forms of tungsten carbide and cobalt which are during a specific sintering process fused together into a dense "hard metal".
Tungsten carbide is much stiffer than steel.
ID is 14 mm.