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Poltava Premium Metallic CBN Stone [4" x 1"]
Metallic CBN Sharpening Stones from Poltava Diamond Tools are now available in 4" x 1" form-factor for sharpening knives using small guided knife sharpeners such as KME. CBN (Cubic Boron Nitride) is the second-hardest material after diamond. Metal bonded CBN stones utilize copper-tin alloy...
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