Affilatura diamantata, pietre per levigare 100-200 mm, 3'' - 8', qualsiasi granulometria, Poltava
KnifeKnowledge: CBN vs Diamonds - Whetstone built to do the job. ONLY the PDT factory (Ukraine, Poltava) has this technologyinthe World! This technology is available ONLY at the Poltava Diamond Tools factory (!).