Norton BlueFire – New & improved zirconia alumina/aluminum oxide - Highly versatile product that grinds and cuts a variety of materials with efficiency. MSDS Sheet Features: Enchanced performance & life - up to 20% vs. former Norton Charger wheels No other zirconia wheel will provide the superior performance-to-price ratio of Norton BlueFire – Application: Typical markets - Welding, Metal Fabrication, Pipeline & Petrochemical, Foundry & Construction Specs: Abrasive Type Cut Off Wheel Diameter 5 in Arbor 7/8" Thickness 0.0450 in Wheel Type Type 1 Material Aluminum Oxide, Zirconia Alumina Specifications RC5BF Trade Name BlueFire – RPM [max] 12225