Black Alumina Ceramic Knife Sharpener, 8.8 Inch
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Black Ceramic Sharpener with Black Handle, 8.8 inch.
Material Specification: A-43-L
Al2O3>95% L. O. I<0.73% Na2O<0.27%
Specific density 3.93g/cm
Hardness (HRC) >95
Grain size <0.4um
BET = 8.3m2/g
This ceramic sharpener is very comfortable and easy to use, the ultra fine black ceramic shaft goes through special hot pressed process and is perfect for all fine steel knife blades. It will help to maintain a razor-sharp edge for many years! Made of the advanced, high-tech Al2O3 ceramic, second in hardness only to diamond, it was originally developed for industrial applications where metal components failed.
This sharpener is not used to sharpen ceramic knives, only steel knives!