Fiskars Whetstone Premium Set for Sharpening Knives. Restore exceptional sharpness to all your kitchen knives with the Fiskars Whetstone Premium Knife Sharpening Set, which includes a dual-grit stone, a sharpening tool, and polishing leather. This lightweight and highly efficient knife sharpener is suitable for all Fiskars knives, including titanium knives, which can only be sharpened with a whetstone. The package includes detailed instructions on how to safely and conveniently sharpen a knife at home. The Fiskars Whetstone Premium Knife Sharpening Set contains everything you need to sharpen your kitchen knives, all in a stylish storage case. The whetstone sharpener is compatible with all Fiskars knives, including titanium knives, which can only be sharpened with a whetstone. The double-sided sharpening stone has rougher and finer sides that are used to achieve a perfectly sharp edge. The kit includes a sharpening angle tool that positions the knife at a 26° angle, which is ideal for Fiskars knives. A non-slip sharpening stone holder provides added comfort and safety. The leather polish refines and polishes the blade after sharpening. The package includes easy-to-understand instructions.