The perfect stones for sharpening knives, chisels, etc.
Are used dry, no water or oil needed.
Manufactured out of very hard aluminium-oxide. (synthetic sapphire.)
Will not develop grooves, and will wear only slightly over time. Material: Aluminium oxide Hardness: 9,2 on the Mohs-scale
|Country of origin||unknown|
Werner Fütterer, Lüdersfeld
Friday 11 January 2019
Combideals & accessories