3M 7100177938 Flap Wheel 2 in Ao 120 Grit 1/4-20 Arbor

Product Description

The 3M 7100177938 is a 244D series flap wheel designed for general-purpose grinding, polishing, sanding, and finishing on metal and similar materials. Built with aluminum oxide mineral, it cuts sharp and maintains cutting performance over extended use. The flap construction uses individually mounted abrasive flaps that continually lap the surface, producing fine finishes without aggressive stock removal. An X-weight cotton cloth backing supports the abrasive under pressure while remaining malleable enough to conform to contours, reducing the risk of gouging or marring the workpiece. This wheel is suited for use by metalworkers, fabricators, and maintenance technicians in shop or field settings.

This flap wheel is intended for use in rotary tool applications requiring consistent surface finishing across flat, curved, or irregular workpiece geometries. The 2-inch diameter and 1/4-20 arbor mounting make it compatible with standard die grinders and rotary tools used in metal fabrication, weld blending, and surface preparation. The 120-grit aluminum oxide abrasive targets fine finishing and light material removal rather than aggressive grinding. It is sold individually and suited for both production environments and maintenance repair operations.

Key Features

• Aluminum oxide mineral provides sharp cutting action and extended service life
• Individually mounted abrasive flaps continually lap the surface for consistent finish quality
• X-weight cotton cloth backing resists tearing and stands up to edges and contours
• Malleable backing minimizes gouging and marring on workpiece surfaces
• Compatible with Type 83 (T83) and Type 84 (T84) mounting systems
• 120 grit targets fine finishing and light surface conditioning

Compatibility

Designed for use with standard rotary tools and die grinders accepting a 1/4-20 arbor mount. Compatible with Type 83 (T83) and Type 84 (T84) mounting systems as stated by the manufacturer.

Installation Notes

Installation and operation should be performed by qualified personnel familiar with rotary abrasive tooling. Ensure the tool is powered off and disconnected from any power source before mounting or removing the wheel. Verify that the tool RPM rating meets or exceeds the wheel rating before operation. Wear appropriate personal protective equipment including eye protection and gloves during use.

Technical Specifications

• Wheel Diameter: 2 inches
• Arbor Size: 1/4-20
• Grit: 120
• Abrasive Mineral: Aluminum Oxide
• Abrasive Type: Coated
• Backing Material: X-Weight Cotton Cloth
• Mounting Type: Type 83 (T83) and Type 84 (T84)
• Package Dimensions: 5.5 x 4.5 x 5 inches
• Weight: 0.16 pounds
• UPC: 00051144145928

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100177938