3M 7100178225 Flap Wheel 3 in 80 Grit Aluminum Oxide

Product Description

The 3M 7100178225 is a 244D series general-purpose flap wheel designed for grinding, polishing, sanding, and finishing on metal and other surfaces. Built with aluminum oxide mineral abrasive, this wheel cuts sharp and holds up through extended use. The individually mounted abrasive flaps continually lap the surface, delivering consistent material removal while leaving finer finishes than conventional grinding wheels. An X-weight cotton cloth backing provides durability and enough flexibility to conform to contours, minimizing gouging and marring on workpiece edges. This wheel mounts via a 1/4-20 arbor and runs at 80 grit, making it well suited for medium stock removal and surface blending applications handled by metal fabricators and industrial maintenance technicians.

This flap wheel is intended for use on ferrous and non-ferrous metals, welds, and fabricated components in shop and field settings. It fits Type 83 (T83) and Type 84 (T84) mandrel mounting systems, giving it broad compatibility across standard die grinders and drill applications. Typical use cases include deburring weld seams, blending surface transitions, and preparing metal for coating or finishing. The 3-inch diameter and 80 grit combination suits moderate-duty material removal where a balance of cut rate and surface quality is needed.

Key Features

• Aluminum oxide abrasive mineral for sharp cutting and long service life
• Individually mounted flaps continually refresh the cutting surface for consistent finish quality
• X-weight cotton cloth backing resists tearing and conforms to edges and contours
• Compatible with Type 83 (T83) and Type 84 (T84) mounting systems
• 1/4-20 arbor mount for use with standard die grinders and drills
• 80 grit rating supports medium stock removal and surface blending

Compatibility

Designed for use with Type 83 (T83) and Type 84 (T84) mandrel mounting systems. Fits standard die grinders and drills accepting a 1/4-20 arbor.

Installation Notes

Installation is typically performed by metal fabricators, maintenance technicians, or machinists using a compatible die grinder or drill. Confirm the tool is powered off and disconnected from its power source before mounting or removing the flap wheel. Verify the arbor thread engagement is secure before operating and inspect the wheel for damage prior to each use. Always operate within the maximum RPM rating of the wheel and wear appropriate eye and face protection.

Technical Specifications

• Diameter: 3 inches
• Arbor Size: 1/4-20
• Grit: 80
• Abrasive Mineral: Aluminum Oxide
• Abrasive Type: Coated
• Backing Material: X-Weight Cotton Cloth
• Mounting Type: Type 83 (T83) and Type 84 (T84)
• Package Dimensions: 6 inches x 5.5 inches x 6 inches
• Weight: 0.37 pounds
• Sold As: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100178225