Interstate NMTB Taper Reducing Adapter
NMTB50 Outside Taper, NMTB30 Inside Taper
 Hardened and Ground Throughout
For changing from National Standard Taper to R8. #30 & 40.
           NMTB Taper Reducing Adapter
       
 
             
                         
                            
 
                 
                 
                 
                