These threaded adapters are recommended for wheel bushes up to 4" in diameter. The adapters fit brushes with 1/4", 3/8", and 1/2" arbor holes and provides a 1/4" stem diameter.
                    Unit of Measure
                    
               
        
            
                                                                                Units Per Package | 
                                                                        N/A 6 | 
                                                                                Arbor Adaptor | 
                                                                        N/A 1/4" | 
                                                                                Overall Length | 
                                                                        N/A 2-1/8" | 
                                                                                Stem Diameter | 
                                                                        N/A 1/4" | 
                                                                                Adaptor Type | 
                                                                        N/A Chuck Type Mandrel | 
                                                                                Brush Diameter | 
                                                                        N/A 2" |