Keep in mind that routers (drills, saws, etc) are all direct drive (Skil saw worm drive not so) and that the HP rating is peak and has limited torque - put too much load on it and the motor stops. For a mill or lathe the motor power (torque) is multiplied many times over through the adjustable sheives that regulate the RPM of the too - put too much load on it and you have a broken tool or work piece while the motor keeps going.

Scott

My HT