3M 7000118686 Air Line Extension 3/8 in X 4 Ft Sander

Product Description

The 3M 7000118686 is an air line extension designed for use with 3M Random Orbital Sanders equipped with Self-Generating or Central Vacuum systems. The extension moves the air connection away from the exhaust tube, reducing the risk of couplings contacting the work surface during operation. At 4 feet in length with a 3/8-inch diameter, it provides useful reach while maintaining a secure pneumatic connection. A 1/4-inch NPT fitting attaches directly to the sander body. This accessory is installed by HVAC technicians, automotive refinishers, woodworkers, and general trade professionals who use pneumatic orbital sanders in production or finishing environments.

This air line extension is suited for professional finishing applications where tool-to-work-piece clearance is a concern. It is intended for use with 3M Random Orbital Sanders in both shop and field settings. The 4-foot length keeps the coupling assembly clear of the work surface, which is particularly useful when sanding large flat panels, automotive body work, or finish carpentry projects requiring consistent surface contact.

Key Features

• 4-foot extension keeps couplings away from the work piece during operation
• Moves air connection away from the exhaust tube for cleaner airflow routing
• 1/4-inch NPT fitting attaches directly to compatible 3M Random Orbital Sanders
• Compatible with Self-Generating and Central Vacuum sander configurations
• 3/8-inch diameter line construction

Compatibility

Designed for use with 3M Random Orbital Sanders equipped with Self-Generating or Central Vacuum systems. Attaches via a 1/4-inch NPT fitting directly to the sander inlet.

Installation Notes

Depressurize the air supply and disconnect the existing air line before attaching this extension. Thread the 1/4-inch NPT fitting directly onto the sander's air inlet by hand first, then snug with an appropriate wrench — do not overtighten. Verify all connections are secure and free of leaks before resuming tool operation. Installation requires standard hand tools and should follow the tool manufacturer's service guidelines.

Technical Specifications

• Length: 4 feet
• Diameter: 3/8 inches
• Fitting Size: 1/4 inch NPT
• Weight: 1.01 pounds
• UPC: 50051141202094
• Sold As: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000118686