In-Line Automatic Air Tool Oiler - AES 819

• 1/4" NPT threads.
• Fabricated of aluminum with a transparent high-impact plastic casing. 
• Filler screw is located on top for easy access.
• Holds a 3-to-4-day supply of oil.
• Keeps air tools lubricated at all times.
• Use on all impact wrenches, air hammers, sanders, etc.