Description:  Heavy duty cutoff wheel mandrel for all 2" to 4" wheels with either a 1/4" or a 3/8" center hole.  It has a removable 3/8" adapter to enable to fit either size center hole. Fits most drills and die grinders. Now offering a USA made version! When ordering specify whether you want 1/4" or 3/8" adapters.  
 
Approximate Size:  1/2" head diameter x 2 1/2" length, USA made version is 2 1/4" long
Material:  steel
 
Made In China, USA