3M 7100178225 Mounted Flap Wheel 80 Grit Aluminum Oxide

Product Description

The 3M 7100178225 is a threaded-mount flap wheel designed for precision grinding, blending, and finishing on metal, wood, and composite surfaces. Built with aluminum oxide abrasive on a cloth backing with XE backing weight, it delivers consistent cut and finish at up to 20,000 RPM. The medium-grade, 80-grit configuration makes it well suited for deburring edges, smoothing welds, and surface prep work where a controlled, even finish is required. Metalworkers, fabricators, and maintenance technicians rely on this style of mounted flap wheel for access to contoured and hard-to-reach areas that flat discs cannot address effectively.

This mounted flap wheel is intended for use with rotary tools, die grinders, and spindle-mounted applications where a threaded arbor mount is appropriate. At 1 inch face width, it covers enough surface area for efficient blending passes while maintaining maneuverability in tight workspaces. Common applications include weld seam blending, pipe and tube finishing, deburring machined parts, and surface conditioning on ferrous and non-ferrous metals. The coated aluminum oxide abrasive construction handles moderate-stock-removal tasks in both shop and field environments.

Key Features

• Aluminum oxide coated abrasive provides durable, consistent cut on metal and composite surfaces
• 80 grit medium grade balances stock removal with surface finish quality
• Threaded mount design for secure attachment to die grinders and rotary tools
• 1 inch face width offers coverage for efficient blending in contoured areas
• Cloth backing with XE backing weight supports flex and conformability on irregular surfaces
• Rated to 20,000 RPM maximum for compatibility with standard high-speed rotary tools

Compatibility

Designed for use with threaded-arbor die grinders and rotary tools rated to accommodate mounted abrasive flap wheels up to 20,000 RPM.

Installation Notes

Installation should be performed by a qualified metalworker or tooling technician familiar with mounted abrasive accessories. Verify that the tool spindle speed does not exceed the 20,000 RPM maximum rating before mounting. Ensure the threaded arbor is fully seated and secure before operating. Always wear appropriate PPE including eye protection and gloves when working with abrasive grinding accessories.