- A: Aluminum Oxide Grain; Used for grinding and finishing metals in hard to reach areas.
 
                    Unit of Measure
                    
               
        
            
                                                                                Units Per Package | 
                                                                        N/A 10 | 
                                                                                Size | 
                                                                        N/A 2" x 3" x 5/8"-11 | 
                                                                                Type | 
                                                                        N/A A16R | 
                                                                                RPM | 
                                                                        N/A 18100 |