Neiko 11009A 7" Cut Off Wheel for Power Grinder, Double Reinforced | 8500 RPM Industrial quality, double reinforced body construction withstands tough conditions and elongates long tool life Stable and thin disc is most idea uniquely made for tough metal cutting Lightweight profile allows for quick wheel change during high speed operation Universally designed to fit all standard 7-inch air tool grinder Hub shaped circular design withstands high speed operation of up to 8500 RPM