DremelDremel 411 #ad - Use for fine detail sanding. 3/4-inch diameter, 180 grit discs are easily replaceable and are used with no. Sanding discs coarse 36 per package can reduce the time and patience required to complete sanding in hard to reach places. Use with no. Also can be used for light deburring. 402 mandrel. 36 pcs per package.