I recently purchased a big 2 HP router and a 15 bit set from Harbor Freight. The router is going on the finished CNC router, but I also needed it to make a few chamfers on the sides of some of the parts. The router is one speed, and says that it has a "Maximum RPM of 29000". The chamfer bit that came with the set, on the other hand, says that it has a max speed of 18000. What do I do, now?