The Cuisipro Fine Accutec Rotary Blade is designed for adding intense flavors to a recipe. Accutec uses a process called acid etching that creates extremely sharp razor-like edges. Other acid-etched blades only etch on one side while Accutec etches on both sides. 30% is etched on the top of the blade while 70% is etched on the bottom. A perfect surface for uninterrupted grating where food virtually glides through the blades, Accutec graters and shavers work more efficiently than conventional stamped graters. Blade is made of high-quality, durable stainless steel. Dishwasher safe. Cuisipro kitchenware and kitchen utensils are backed by a 25 year warranty from Cuisipro.