Ferrule for walking poles, ID 16 mm (tungsten carbide tip)
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Ferrule for walking poles for cylindric shafts with tungsten carbide 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 (widia) is much stiffer than steel, so this tip is extremely durable.
ID is 16 mm.