7 in Wheel Diameter 0.5 in Wheel Thickness Grinding Abrading Application Stock Removal Abrading Application Aluminum Oxide Abrasive Material Straight Grinding Wheel Also Known As Vitrified Bond Purple Color Surface Grinders, Tool & Cutter Grinders,Drill Sharpening For Tool Type 46 Grit H Hardness Grade 300 Series Stainless Steel Material Application 400 Series Stainless Steel Material Application High Speed Steel Material Application Iron Material Application Soft Steels RC30-45 Material Application Tool Steels RC50-68 Material Application Ferrous Metals Material Category Application Yes Porosity Coarse Relative Grit Grade ANSI B7.1 Specifications Met ANSI B7.7 Specifications Met OSHA Specifications Met Type 1 Type Number Do Not Use Above Recommended RPM Warnings & Restrictions User is Responsible for Complying with ANSI B7.1 and B7.7 Warnings & Restrictions 32A46-HVBEP Wheel Specification 32A Abrasive Type Yes Safe for Use on Stainless Steel Better Series Tier 1.25 in Center Hole Diameter 6 Grain Structure Straight Wheel Shape 3600 RPM Maximum RPM