3M 7100017820 Abrasive Belt 1x42 in Aluminum Oxide Very Fine

Product Description

The 3M 7100017820 is a non-woven abrasive belt designed for surface finishing, blending, and light material removal on metal, wood, and composite surfaces. Measuring 1 inch wide by 42 inches long, it fits standard 1 x 42 inch belt sanders and finishing machines. The belt uses aluminum oxide abrasive bonded to a scrim backing, rated at a very fine grade for controlled stock removal and smooth surface preparation. It is suited for both wet and dry operation, giving the installer flexibility depending on the application and workpiece requirements.

This belt is used in metalworking shops, fabrication facilities, HVAC duct fabrication, plumbing rough-in prep, and general maintenance environments where consistent surface conditioning is needed. Very fine grade aluminum oxide is appropriate for final-pass deburring, pre-paint blending, and weld seam finishing. The scrim backing provides dimensional stability during high-speed belt operation. It is part of the SC-BS series, which is designed for general-purpose non-woven finishing applications across a range of materials.

Key Features

• Aluminum oxide abrasive for consistent cut and long service life on metal and wood
• Very fine grade for surface blending, deburring, and pre-finish prep work
• Non-woven construction conforms to irregular surfaces without loading quickly
• Scrim backing maintains belt shape and stability at operating speeds
• Rated for both wet and dry use, compatible with coolant or dry grinding setups
• SC-BS series construction for general-purpose non-woven finishing applications

Compatibility

Designed as a standard 1 inch by 42 inch replacement belt for belt sanders and finishing machines that accept this belt size.

Installation Notes

Install on a belt sander or finishing machine rated for 1 x 42 inch belts. Confirm the machine is powered off and unplugged before changing belts. Check belt tracking and tensioner adjustment after installation and before resuming operation. For wet use, verify that the machine is rated for wet operation before applying coolant or water.