preziss diamant, PCD Diamond Cutting Tools Manufacturer of precision cutting tools. PREZISS is a supplier to the automotive and metal working industry of engineered solutions in polycrystalline diamond (PCD) for the machining of aluminium components. thanks to its excellent hardness, and abrasion resistance can be achieve high productivity results as well as high finishing quality and reliable tolerances. fine boring, reamers, face milling a comprehensive range of high precision cutting tools re