Kyocera DS-50 Knife Sharpener. Battery powered, this electric knife sharpener is the perfect solution for at-home sharpening and refreshing of your ceramic and steel kitchen knives. Ideal for Kyocera Ceramic knives, the diamond grinding stone can take up to .5mm nicks off a blade, achieving a 35-degree angle. A convenient knife guide slot and assist roller allow for a user-friendly and controlled sharpening of the blade. This sharpener can be used on ceramic or steel knives. It’s easy to clean since cover and grinding stone unit is separate. Diamond Grinding Stone can be replaced. Unit size: 4" x 7" x 5"