How to create realistic brake rotors in 3ds Max

thanks for making the easiest tutorial ever made, I'm sure some people in this world haven't already figure how to make brake rotor in 3ds max out. Next time, how to model a sphere using the primitives toolbox? ... Plus you should check how a brake disk looks like in real life before calling this "realistic" because it's far, but WAY FAR from being realistic, the render is somewhat realistic because of the materials, but the model is not, it's like a toy or it's a brake disk for chineses car, those who aren't suposed to drive on the road. No need to study mecanic to figure that out, just to use you brain to use GOOGLE IMAGE, looking for references....