Grind up to 10 times longer and 50 percent faster when you attach the NorZon 4NZ ZA type 11 non-reinforced portable snagging wheel to a portable cup grinder. An outstanding wheel for heavy-duty projects using grinders with medium to high horsepower, the wheel features a premium alumina grain that stands up to tough foundry snagging jobs. This versatile wheel can handle many metal surfaces, including stainless, carbon steels, titanium, super alloys and soft metals.