Even though using friction pads on cast-iron discs is a technology invented all the way back in 1929, it took the automotive industry a long time to realize that this method of braking is simply superior.

Disc brake rotors are found on the majority of modern cars.Some come with only front discs while others feature all four. But you pay for the slotting(cant do that at home). Understanding the Physics of Brake Rotors. Cracking is not a problem, and the warping problem is also gone. I have since started using slotted rotors. Knock them all you want, but it works and works well. I drilled 36 holes per rotor(72 total) and was done drilling in less than 10 minutes, and all done with the same drill bit. I put a brand new set of rotors on a brake lathe and made three circles to create spots for drilling, then i drilled them with a hand drill on a block of wood in the garage. The hill i was driving down, i could warp a brand new set of rotors every day, so i tried drilling a set. Made a huge difference in the problem that i was having(warping rotors). I have personally drilled a set of rotors. On the other hand, It doesnt really matter whether you drill them at home or you buy them that way. He eventually developed a horrible vibration when braking and found this:Įveryone and their brother told him that he should have spent his time making brake ducts instead. This guy spent literally dozens of hours drilling his brake rotors, then proceeded to spend several more hours trying to defend them. Came across a picture that I hadn't seen in a while.

Slot and drill brake shop garden grove