Vintage Working Chef's Choice Diamond Hone Sharpener Model - Etsy
Ascutitor de cutite Hybrid® Diamond Hone® Model 270 - Chef's Choice
Amazon.com: Chef's Choice Hybrid Diamond Hone Knife Combines Electric and Manual Sharpening for Straight and Serrated 20-Degree Knives, 3-Stage, White: Electric Knives: Home & Kitchen