3M 7010366427 Finishing Flap Brush 8x4x3 Inches Very Fine

Product Description

The 3M 7010366427 is a finishing flap brush designed for light-duty cleaning and surface finishing applications. Individual abrasive sheets are adhered at a 90-degree angle to the core, creating a flap-style action that contacts the workpiece with consistent, controlled pressure. The brush carries a hard 7A density rating, which delivers extended service life while limiting conformability — making it suitable for flat or low-contour surfaces where aggressive sheet wrap-around is not desired. The abrasive mineral is aluminum oxide in a very fine (VFN) grade, appropriate for light stock removal, surface prep, and finish-refining work. Weighing 2.66 pounds, the brush measures 8 inches in diameter, 4 inches in face width, and accepts a 3-inch arbor bore.

This flap brush is suited for use in light industrial, fabrication, and maintenance environments where surface conditioning or final finishing is required. Typical applications include cleaning mill scale, blending weld areas, deburring edges, and preparing metal surfaces prior to coating or inspection. The very fine aluminum oxide construction makes it appropriate for finishing passes rather than aggressive material removal. It is installed on stationary or portable grinders and finishing equipment used by machinists, fabricators, and maintenance technicians working with ferrous and non-ferrous metal substrates.

Key Features

• Individual abrasive sheets mounted at 90 degrees to core for consistent flap-style contact
• Hard 7A density rating provides long service life and low conformability on flat surfaces
• Very fine grade aluminum oxide mineral for light finishing and surface conditioning
• 8-inch diameter with 4-inch face width and 3-inch arbor bore
• Rated for light-duty cleaning and finishing applications

Compatibility

Designed for use on stationary or portable grinders and finishing machines equipped with a 3-inch arbor. Suitable for light-duty finishing operations on ferrous and non-ferrous metal surfaces.

Installation Notes

Installation should be performed by a qualified operator familiar with abrasive wheel and brush mounting procedures. Confirm the spindle speed rating of the equipment does not exceed the rated RPM of the brush before mounting. Power down and lock out the grinder or finishing machine before installing or removing the brush. Follow ANSI B7.1 guidelines for abrasive product mounting, including proper flange use and guard positioning.

Technical Specifications

• Diameter: 8 inches
• Face Width: 4 inches
• Arbor Bore: 3 inches
• Density Grade: 7A (Hard)
• Abrasive Grade: Very Fine (VFN)
• Abrasive Mineral: Aluminum Oxide
• Weight: 2.66 pounds
• UPC: 00048011278490

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010366427