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an instrument used for measuring the hardness of minerals by impressing a polished surface with a diamond point, kriipekõvaduse määramise seade, kus kriteeriumiks on jõud, mille jätab teemantnõel materjali pinnale 0,01 mm laiuse kriimu
scratch hardness tester . Materjalitehnika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mtr/scratch%20hardness%20tester/1/eng (14.07.2026)