EBC Premium brake discs for one axle We offer the premium brake discs as OE replacement parts. Even in the OE spare parts area, we attach great importance to producing high-quality products to ensure your safety. All EBC Premium brake discs are made of gray cast iron and have a tensile strength of 150N/m2 with a deviation in surface hardness of max. 20HB. The premium brake discs are CNC milled with a surface tolerance of 0.01mm. So it is not a cheap imported product, but a high-quality OE replacement part that is in no way inferior to the quality of the original brake discs installed.