These guide rails are designed to help maintain the correct angle for sharpening knives when sharpening with a whetstone. The angle is between 10 and 15 degrees. The guide rails are sold as a set which includes a small and large guide rail. The small guide rail is suitable for knives with blade lengths less than 6".
The large guide rail is suitable for knives larger than 6". The guide rails are lined with plastic to minimize scratching on the knives during their use. Care is still needed if you want your knives to remain scratch free. Any time you remove one of the guide rails from your knife, rinse and clean it thoroughly to remove any residue from the stone that may remain inside the guide rail.
To further insure that no residue remains, it is recommended that you pull a clean towel through the guide rail after rinsing.
If you fail to remove all the residue from the guide rail, the residue may scratch the knife the next time the guide rail is used.
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