3M 7010294890 Finishing Flap Brush 8x3x3 in Very Fine

Product Description

The 3M 7010294890 is a finishing flap brush designed for light-duty cleaning and surface finishing applications. The brush measures 8 inches x 3 inches x 3 inches and is constructed with individual abrasive sheets adhered at a 90-degree angle to a central core. The abrasive mineral is very fine grade aluminum oxide, suited for controlled material removal and surface refinement. The hard density (7A) formulation promotes long service life and delivers low conformability, meaning the brush maintains its shape under load rather than conforming to irregular surfaces. It is sold as a single unit and weighs 2.05 pounds.

This flap brush is intended for use in light cleaning and finishing operations across metal fabrication, maintenance, and surface prep workflows. The very fine aluminum oxide abrasive makes it appropriate for final-stage finishing where surface quality matters. It is typically used in conjunction with a compatible arbor or mounted spindle on a bench grinder, angle grinder, or similar rotary tool. Metalworking shops, maintenance technicians, and fabrication professionals are the primary users of this product type.

Key Features

• Individual abrasive sheets mounted at 90 degrees to the core for consistent flap-style action
• Very fine grade aluminum oxide abrasive mineral for controlled finishing
• Hard 7A density provides long life and low surface conformability
• 8 inches x 3 inches x 3 inches overall dimensions suit medium-bore rotary applications
• Light-duty design optimized for cleaning and finishing rather than aggressive stock removal

Compatibility

Designed as an OEM-style replacement-grade finishing flap brush for use on rotary power tools accepting a compatible arbor bore and rated for the brush diameter and operating speed.

Installation Notes

Installation is typically performed by a machinist, metalworker, or maintenance technician. Before mounting, verify that the tool spindle speed does not exceed the maximum rated RPM marked on the brush. Power down and de-energize the tool completely before mounting or removing the brush. Ensure the arbor bore, flange size, and thread direction are compatible with the tool before securing.

Technical Specifications

• Dimensions: 8 inches x 3 inches x 3 inches
• Weight: 2.05 pounds
• Abrasive Mineral: Aluminum oxide
• Grade: Very fine
• Density: 7A (hard)
• Construction: Individual sheets adhered at 90 degrees to core
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010294890