AO-300 Automatic OilerThe AO 300 automatic oiler is a specialty part that you can install in certain shredder models to practice regular oiling. Automatic oilers promote regular lubrication for your paper shredder to keep the blades sharp and running smoothly. This part allows you to skip the hand oiling process and notifies you when oil levels are low. You can use the AO 300 automatic oiler to promote efficiency in your shredding process.