Swix Diamond Stone Racing

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I bought one roughness universal stone (yellow) for the maintenance of the edges of downhill and ski skis and snowboards, and it works great. In addition, you need e.g. a Phantom Blade Guide (for the edge edge, which does matter) and possibly a Base Edge File Guide (which should not be needed. A Gummy Stone is also necessary if your edge is rusty. In addition, you should know the corners of the edges of your skis (often on the manufacturer's website). When the whole family's equipment is maintained, it becomes somewhat cheaper and you know who to blame. I go through the edges every time I wax my skis.

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Diamond file. Works for grinding edges. It is advisable to rinse in a load of water and brush so that the diamond does not become clogged.

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A good stone for breaking the thread or for finishing passes.

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Very good.

Good product

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Surprisingly fast wear - requires constant angle change in seemingly heavy use to maintain power, ie not to wear too much at the same point.