This Combination Honing Steel helps maintain your edges. It’s used to hone your knives, that is, to gently realign the cutting edge of your Kai Housewares cutlery. The Combination Honing Steel has two surfaces: a smooth one for weekly honing, and a micro-ribbed one for monthly honing, depending on your level of usage. It has a built-in angle on the handle, which makes it easy to hone your knives to the correct 16? angle.