Dexter-Russell makes a variety of Cheese Knives. There are one-handled and two-handled cheese knives, all designed to cut through cheese wheels and cheese blocks like butter, although there are many other applications for these high-carbon steel bladed knives. Note that with the double-handled cheese knives, you can apply greater, more even pressure while slicing through that hard cheese rind.
Not only that, the two handles allow you to cut through harder items such as chocolate, by using a rocking motion. One handled versions of their cheese knife are durable and efficient, as well, useful for slicing a variety of foods. Consider a Dexter-Russell Cheese Knife for your commercial kitchen, available with a rosewood handle or a white textured polypropylene handle.