Attach this mandrel to an electric motor for high quality sanding, polishing or buffing operations. Unused, in original box, with operating instructions This ball bearing double-end mandrel (model 4224) has two high-quality precision grade die-cast ball bearing pillow blocks. Will run wheels up to 1" thick. Use with flap wheels, wire brushes, buffing and grinding wheels having a 1/2" arbor hole. 12" overall; Pulley diameter 2"; shaft diameter is 5/8" threaded 1/2"- 20 Right and left hand. The keyless chuck can be mounted on the right hand end to allow use of various accessories such as sanding drums, mounted points, etc. Note the seller is in Metchosin but can connect in Langford or Colwood.