4 diamond Sharpener

About Product:？ Diamond Sharpener is both open and close with π-shaped slot in the plastic mould, π-slot module has two diamond, left, right, at a 7-degree angle, arrange a knife blade-shaped cross. The sharpening grinding method is simple and convenient, everyone can knife sharpener features, and sharpening fast, convenient, sharp, safe and reliable, that everyone can master grinding tools, 10~4du angle knife sharpener