Used Knife grinding machines for sale - Machineseeker
May 14, 2019· Unlike an electric or manual knife sharpening machine, you have to hold the blade at the correct sharpening angle. The result, though, is a freshly sharpened edge. Sharpening stones are also known as whetstones. The word "whet" means to sharpen. A delicious aroma can whet your appetite, and a sharpening stone can whet your kitchen knives.