Gumi or Gummi Stone, coarse gray, for prepping an edge or detuning.
- Use this stone to remove rust.
- Deburrs edge after sharpening.
- Detune tips & tails by gradually applying pressure for superior results.
Measures 1.6 in (40 mm) x 1.3 in (32 mm) x 0.8 in (20 mm).
By adjusting the pressure you apply in detuning you can transition the detuning from fully detuned to racing edge.
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Works very well in removing rust without damaging the base & edge. Get a few as it is small and wears out relatively easy.
This product works great for removing surface rust off my ski metal eges without having to take a file to it. It also works on softening the edge on the from and rear edges of the skis