3M 7100133791 Scotch-brite Exl Pro Unitized Wheel 8 Inch

Product Description

The 3M 7100133791 Scotch-Brite EXL PRO EX-UW is a nonwoven aluminum oxide unitized abrasive wheel engineered for laser braze finishing on silicon bronze. At 8 inches in diameter, this wheel produces a clean, consistent surface finish while resisting smearing and heat buildup — two factors that matter when working with heat-sensitive base materials. The open web, layered construction extends service life by resisting loading, and the wheel can run in either clockwise or counterclockwise rotation, offering flexibility in setup and use.

This wheel is built for fabrication and metalworking applications where laser brazing with silicon bronze is the joining method. It is particularly suited to blending and finishing braze seams to a clean edge without introducing secondary contamination or requiring excessive rework. Typical users include welding fabricators, automotive body technicians, and industrial maintenance professionals working with precision-joined assemblies.

Key Features

• Nonwoven aluminum oxide construction delivers controlled surface finishing without aggressive stock removal
• Open web design resists loading and extends effective service life
• Resists smearing, reducing prep time and cleanup after finishing passes
• Minimizes heat buildup to protect heat-sensitive base materials during finishing
• Bidirectional rotation — operates clockwise or counterclockwise
• Unitized, layered construction maintains consistent cut and finish throughout wheel life

Compatibility

Designed for laser braze finishing applications on silicon bronze; suitable for use on metalworking grinders and finishing machines that accept 8-inch unitized wheels.

Installation Notes

Mount on a compatible right-angle grinder or bench-mounted finishing unit rated for the wheel diameter and RPM. Confirm the machine spindle speed does not exceed the wheel's rated maximum RPM before operation. Wear appropriate eye and face protection, and inspect the wheel for damage prior to each use. Power down and isolate equipment before changing or adjusting the wheel.