Hook knives also known as Spoon knives can be used to hollow out the bowl of spoons, cups, kuksas and bowls or any other project where you want to create a hollow. This handmade hook knife has a Medium radius making it good for hollowing and finishing eating spoons, cooking spoons, bowls cups and more and is a good allrounder size. They are single beveled on one side only meaning that they are available as right handed or left handed. Specifications Blade length: 55mm Blade width: 8.5mm Blade thickness: 1.8mm Steel: 01 Tool Steel Hardness: 59-60 HRC Handle length: 175mm Handle width: 20mm Handle thickness: 20mm Handle Material: Beech We recommend only sharpening hook knives on the inside edge as you have a flat registration point to work with. The outside of the blade has a convex surface from the tip to heel as well as from the edge to the spine which means that there is a complexity to could lead to headaches if you get it wrong. Regular stropping however on the inside edge using a dowel with stropping compound and a stropping paddle for the outside edge is a great way to maintain a keen edge for longer before you will even need to think about resharpening your hook knives.