3M 7010329008 Brite Cut Polish Flap Brush 8x3x4 in 5A Med

Product Description

The 3M 7010329008 is a Brite Cut and Polish Flap Brush engineered for heavy-duty surface finishing applications that demand higher-grade polished results. The brush measures 8 inches in diameter by 3 inches in face width with a 4-inch arbor hole size. It uses medium-grade aluminum oxide as the abrasive mineral, delivering consistent cut and polish action on metal and other hard surfaces. Individual abrasive sheets are adhered at a 90-degree angle to the core, which allows each sheet to flex and conform to the work surface. This design provides even contact and a more uniform finish compared to standard wheel styles. Surface finishing professionals and metalworking fabricators are the primary installers of this tool.

This flap brush is suited for applications where a higher polished finish is required beyond standard deburring or blending work. The medium hardness 5A density rating makes it appropriate for tasks that need controlled aggression — enough cut to remove surface irregularities while still producing a refined finish. Typical use scenarios include finishing weld seams, polishing stainless steel, and surface preparation on structural metal components in both shop and field environments.

Key Features

• Individual abrasive sheets mounted at 90 degrees to the core for consistent surface contact
• Medium-grade aluminum oxide mineral for balanced cut and polish performance
• Medium hardness 5A density rating for controlled aggression on hard surfaces
• Heavy-duty construction designed for applications requiring higher polished finishes
• 8 inches x 3 inches x 4 inches dimensions suit standard arbor setups

Compatibility

Designed as an OEM-style replacement and standard fitment flap brush for bench grinders and right-angle machines accepting a 4-inch arbor hole configuration.

Installation Notes

Installation and operation of flap brushes should be performed by qualified personnel familiar with rotary abrasive tooling. Always verify the machine spindle speed rating does not exceed the maximum RPM rating of the brush before mounting. Power down and lock out the machine before mounting or removing the brush. Wear appropriate PPE including eye protection and gloves during use.

Technical Specifications

• Diameter: 8 inches
• Face Width: 3 inches
• Arbor Hole Size: 4 inches
• Abrasive Mineral: Medium grade aluminum oxide
• Density / Grade: 5A Medium
• Weight: 2.71 pounds
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010329008