3M 7010292400 Finishing Flap Brush 8x3x3 in Medium Aluminum Oxide

Product Description

The 3M 7010292400 is a finishing flap brush designed for light-duty cleaning and finishing applications in trade and industrial settings. The brush measures 8 inches x 3 inches x 3 inches and is built around individual abrasive sheets adhered at a 90-degree angle to a central core. The abrasive mineral is medium-grade aluminum oxide, a durable cutting material suited for surface prep, light deburring, and finish blending. The hard density construction (7A) extends service life and limits conformability, making it appropriate for flat or near-flat workpiece surfaces. Fabricators, maintenance technicians, and metalworkers are the primary installers and users of this product.

This flap brush is intended for light-duty surface finishing tasks on metal, composites, or similar materials. Typical applications include weld blending, surface conditioning, rust and scale removal, and preparation of surfaces before coating or painting. The 8-inch diameter is suited to bench-mounted or pedestal grinder setups where consistent, repeatable finishing passes are required. The medium aluminum oxide grit provides a balance between cut rate and finish quality for general shop and field maintenance work.

Key Features

• Individual abrasive sheets adhered at 90 degrees to core for consistent flap action
• Medium-grade aluminum oxide abrasive mineral for balanced cut and finish
• Hard 7A density construction for extended service life and low conformability
• 8 inches x 3 inches x 3 inches overall size fits standard pedestal and bench grinder arbors
• Light-duty rating appropriate for cleaning, blending, and surface finishing tasks

Compatibility

Designed as an OEM-style replacement flap brush for bench-mounted or pedestal grinder setups requiring an 8-inch diameter, 3-inch wide wheel with a 3-inch bore for light-duty finishing and cleaning operations.

Installation Notes

Installation should be performed by a qualified technician familiar with abrasive wheel mounting procedures. Always power down and lock out the grinder before mounting or removing the flap brush. Verify that the grinder spindle speed rating meets or exceeds the maximum RPM rating marked on the brush before operation. Follow ANSI B7.1 abrasive wheel safety standards during mounting, guarding, and use.

Technical Specifications

• Dimensions: 8 inches x 3 inches x 3 inches
• Abrasive Mineral: Aluminum Oxide
• Grade: Medium
• Density: 7A (Hard)
• Duty Rating: Light Duty
• Weight: 2 pounds
• UPC: 00048011157832

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010292400