These router bits are a complete waste of money. Through trial and error, I found that these bits were not sharp enough to handle even basic cuts. They also tend to chip or break easily, which is a real problem if you're doing any type of detailed routing work. The only good thing about them is that they come in a nice package. Industrial and Scientific shouldn't sell these bits.
Pros
Produces clean and precise cuts with minimal tear-out
Cons
Requires a router with a minimum of 2.25 horsepower to operate effectively
I am a manufacturer of CNC milling machines. And used it to profile wall panels. By setting a steady feed I was able to cut almost 100 sheets before it broke. For something so small, it was definitely a champion!