This is the Great Planes Standard (SAE) Precision Prop Reamer.          
                                                                               
FEATURES: Enlarges holes in propellers and spinner back plates-just turn the   
            removable T-handle to cut perfectly centered 1/4" 5/16" and 3/8"   
            holes                                                              
          Constructed of hardened carbon steel                                 
          Stepped design increases accuracy                                    
          Includes plastic storage case                                        
          Can be used with a drill press for extra precision                   
                                                                               
INCLUDES: One Great Planes Standard (SAE) Precision Prop Reamer with storage   
            case                                                               
                                                                               
SPECS:    T-Handle Length: 2.75" (70mm)                                        
          Reamer Length:   4"   (102mm)                                        
          Hole Sizes: 1/4" 5/16" 3/8" Standard (SAE)                           
                                                                               
COMMENTS: Caution: Extremely sharp. Keep well oiled to avoid corrosion.