Monocrystalline Diamond Bench Stones - Lee Valley Tools
The extra-coarse (220x) or coarse (325x) diamond stones are the best for this purpose. The fine stone (600x) can also be used, but it is best for fast steel lapping or general sharpening. The extra-fine stone (1200x) is ideal for fine sharpening — it puts a factory-quality finish on carbide and is …
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