Global Sharpeners, Spatulas & Accessories Global Knife Sharpeners come in a variety of shapes and sizes. The majority of the Global knives are sharpened or ground straight to a point rather than beveled resulting in a dramatically sharper knife which stays sharper longer. The edge is so large and prominent that it is easily seen with the naked eye and extends a quarter inch or more up from the tip of the knife. Because of this you need to a sharpener that can sharpen a V edge. All the sharpeners here will fit the bill.