Tech Specs Additional Information Compliance & Restrictions MSDS Required Accessories Optional Accessories Alternate Products Repair Parts Item Depressed Center Wheel Type Type 27 Wheel Type Contaminant Free Grinding Diameter 4.5" Thickness 1/4" Arbor Size 5/8"-11 Abrasive Material Zirconium Aluminum Oxide Grit 24 Grade Very Coarse Max. RPM 13580 Series Blue Fire Fast Cut/INOX Application For Stainless Steel, Carbon Steel, Alloys To Gray Iron