Freud 91-100 13 pc Router Bit Set
It's hard to pick one best in this category, but I've based this choice on the fact that Freud is the number one choice of most carpenters and cabinet shops. The familiar orange bits are found all over the place, especially in the commercial suppliers that professionals frequent. This set contains 13 of the most common styles of router bits, all with a 1/2 inch shank.
Manufactured with Freud's proprietary carbide formula for long life, all these bits feature a non-stick coating to reduce pitch build up and resist heat. The case can be hung on the wall or mounted on the workbench for convenience. Freud is so confident in their product that they offer a limited lifetime warranty.