What can they sharpen? Block's Knife sharpeners can sharpen many different types of cutting edges. Our Knife sharpeners have a unique flex design made in the knife sharpeners handle that allow the honing rods to adjust to your knife edge. There for you can only make your knives sharper when drawing your blades threw the Honing rods. We can sharpen your Kitchen knives, Pocket knives, Hunting knives, Swords, Daggers, Hatchets, Machetes, Scissor and any style Serrated edges. See how to videoâs on our sight found on sharpener handle.. What types of cutting edges can you sharpen? You will find with our unique flex design you can sharpen many different typeâs of cutting edges. Like all V -shaped edges form 17 Degrees to 24 Degrees, Convent edges, Serrated edges, Scissor edges and odd shaped edges like found on Snake shaped Daggers and Hawk bills.. Safety Features found only on our new models. Knife sharpener handle has a new patent Anti- slip grip over shot added to bottom and top side of the knife sharpener, The ring on bottom or sharpener you see in the image is to give you great grip when using them slippery surfaces. We also added our Anti- slip grip over our the thumb grip on the top side. This thumb grip gives you great control when sharpening knives free hand. Like in the woods or Great outdoors, where there is no table tops available to work off . Patent made in America hand held Knife sharpeners.