Rollerski / XC ferrule, ID 9 mm (special roller tungsten carbide tip)
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Rollerski / XC ferrule for tapered shafts with special roller tungsten carbide tip.
Tungsten carbide (WC) also known as widia 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, so this XC tip is extremely durable.
ID of the ferrule is 9 mm.
To find the right ferrule diameter for your pole please follow the instructions for measuring the diameter of the pole.