| 
                        Seal Kit  DTH-RH550r-3in                     | 
                                                    
                            
                                             | 38-3A056 | 
                                
                | 
                        Guide sleeve with 2 O-rings (#12) DTH-RH550r-3in                     | 
                                                    
                            
                                             | 26-3A010A | 
                                
                | 
                        Piston DTH-RH550r-3in                     | 
                                                    
                            
                                             | 36-3A081 | 
                                
                | 
                        Check valve guide DTH-RH550r-3in                     | 
                                                    
                            
                                             | 39-3A001 | 
                                
                | 
                        O-ring top sub DTH-RH550r-3in                     | 
                                                    
                            
                                             | In seal kit-550r3in | 
                                
                | 
                        Bit retainer ring with O-ring (#12) DTH-RH550r-3in                     | 
                                                    
                            
                                             | 27-3A006A | 
                                
                | 
                        Piston case with retainer ring DTH-RH550r-3in                     | 
                                                    
                            
                                             | 35-3A006A | 
                                
                | 
                        Feed tube with retainer pin DTH-RH550r-3in                     | 
                                                    
                            
                                             | 12-99021 | 
                                
                | 
                        Check valve dart with spring DTH-RH550r-3in                     | 
                                                    
                            
                                             | 25-99006A | 
                                
                | 
                        Driver sub (O-ring not req.) DTH-RH550r-3in                     | 
                                                    
                            
                                             | 34-3A006 | 
                                
                | 
                        Piston retainer ring DTH-RH550r-3in                     | 
                                                    
                            
                                             | 23-99027 | 
                                
                | 
                        Feed tube with retainer pin & blank choke DTH-RH550r-3in                     | 
                                                    
                            
                                             | 37-3A001A | 
                                
                | 
                        Check valve dart spring DTH-RH550r-3in                     | 
                                                    
                            
                                             | 22-99071 |