Morse ME121 (141123), 12" arbor extension has a 7/16" shank. Extension sleeve supports arbors with 7/16" shank. One (1) extension per tube.
      
      
        
        
        
        
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			Details
		 
		  
			- 12" extension
 - 7/16" shank (1/2" chuck)
 - Supports 7/16" shank arbors
 
		   
		 
		
		  
			 Additional Information 
		  
		  
			Manufacturer: MK Morse