3M 7000121169 Flap Brush 4.5x4in 5/8-11 5A Xcs Nonwoven

Product Description

The 3M 7000121169 is a nonwoven radial flap brush designed for surface finishing and blending on all types of metal. Rows of nonwoven abrasive material are arranged in a radial configuration, delivering consistent cut and conformability across contoured and flat workpiece surfaces. The brush mounts via a four-way keyway attachment system, allowing fast changeover without special tooling. Sized at 4.5 inches in diameter by 4 inches in face width with a 5/8-11 thread arbor, this brush is built for use with inline sanders and right-angle grinders rated for compatible arbor threads.

This flap brush is suited for deburring, blending, and finishing operations on ferrous and nonferrous metals in fabrication, welding, and metalworking environments. It is intended for use with the 3M line of 1 HP inline sanders and compatible right-angle power tools accepting a 5/8-11 threaded spindle. The 5A grade and XCS designation indicate a specific nonwoven abrasive combination appropriate for fine finishing and surface conditioning work across production and job-shop settings.

Key Features

• Radial nonwoven construction provides consistent finishing action and conforms to irregular surfaces
• 4-way keyway attachment system enables fast, tool-free brush changeover
• 5/8-11 threaded arbor fits a wide range of inline sanders and angle grinders
• Suitable for finishing, blending, and deburring on all metals including ferrous and nonferrous alloys
• 4.5 inch diameter by 4 inch face width delivers broad surface contact per pass
• 5A XCS grade targets fine surface conditioning without aggressive stock removal

Compatibility

Designed for use with the 3M line of 1 HP inline sanders and other power tools equipped with a 5/8-11 threaded spindle.

Installation Notes

Metalworking professionals and fabricators should ensure the tool is fully powered down and unplugged before mounting or removing the flap brush. Verify the spindle thread size matches the 5/8-11 arbor before installation and confirm the tool RPM rating meets or exceeds the brush maximum rated speed. Always use appropriate eye protection and follow applicable ANSI B7.1 safety standards for abrasive wheel and brush mounting.

Technical Specifications

• Diameter: 4.5 inches
• Face Width: 4 inches
• Arbor Thread: 5/8-11
• Grade: 5A XCS
• Weight: 0.94 pounds
• Unit of Measure: Each
• UPC: 00051141557489

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000121169