| 
                        Driver Sub DTH-RH550r-4in                     | 
                                                    
                            
                                             | 34-48006 | 
                                
                | 
                        Piston Retainer Ring DTH-RH550r-4in                     | 
                                                    
                            
                                             | 23-99029 | 
                                
                | 
                        Feed Tube With Retainer Pin and Blank Choke DTH-RH550r-4in                     | 
                                                    
                            
                                             | 37-48001-1A | 
                                
                | 
                        Check Valve Guide DTH-RH550r-4in                     | 
                                                    
                            
                                             | 39-48001-1 | 
                                
                | 
                        Seal Kit  DTH-RH550r-4in                     | 
                                                    
                            
                                             | 38-48056-1 | 
                                
                | 
                        Guide Sleeve with 2 O-Rings (Item 14) DTH-RH550r-4in                     | 
                                                    
                            
                                             | 26-48J10A | 
                                
                | 
                        Piston DTH-RH550r-4in                     | 
                                                    
                            
                                             | 36-48J81 | 
                                
                | 
                        Feed Tube Retainer Pin DTH-RH550r-4in                     | 
                                                    
                            
                                             | 12-99014 | 
                                
                | 
                        O-Ring Top Sub OD (1) DTH-RH550r-4in                     | 
                                                    
                            
                                             | In seal kit 1DTH-RH550r-4in | 
                                
                | 
                        Bit Retainer Ring w/O-Ring (Item 14) DTH-RH550r-4in                     | 
                                                    
                            
                                             | 27-48006A | 
                                
                | 
                        Piston Case with Retainer Ring DTH-RH550r-4in                     | 
                                                    
                            
                                             | 35-48014A | 
                                
                | 
                        Tuning Ring for low volume (optional) DTH-RH550r-4in                     | 
                                                    
                            
                                             | 56-48552 | 
                                
                | 
                        Check Valve Dart  DTH-RH550r-4in                     | 
                                                    
                            
                                             | 25-99001A |