3M 7100048731 Scotch-brite Exl Unitized Wheel 3 in Ao

Product Description

The 3M 7100048731 is a Scotch-Brite EXL Unitized Wheel designed for smoothing, deburring, and finishing metal alloys, plastics, and composites. The wheel measures 3 inches in diameter and mounts on a 3/8 inch arbor, making it compatible with standard bench grinders and die grinders used in fabrication and finishing work. Its layered, unitized construction provides a consistent cut throughout the wheel's life. The aluminum oxide (AO) abrasive mineral delivers reliable cutting action across a range of surface finishing tasks. This wheel is suited for machinists, fabricators, metal finishers, and maintenance technicians who need repeatable, controlled surface results.

This unitized wheel is used in metal fabrication shops, manufacturing facilities, and maintenance environments for edge deburring, surface blending, and finish polishing on ferrous and non-ferrous metals. It also performs on many plastics and composite materials. The conformable structure allows the abrasive to maintain contact with contoured or complex-shaped workpieces, including applications in robotic and automated processing lines. It is appropriate for both manual and machine-driven finishing operations.

Key Features

• Soft, conformable construction keeps abrasive in contact with complex and contoured part geometries
• Layered unitized build supports operation in both clockwise and counterclockwise directions
• Resists smearing for cleaner finished surfaces and reduced prep time
• Minimizes heat buildup, reducing thermal impact on heat-sensitive base materials
• Wheel edge can be dressed to maintain effective deburring, finishing, and polishing performance
• Suitable for metal alloys, many plastics, and composite materials

Compatibility

Designed for use on ferrous and non-ferrous metal alloys, as well as many plastics and composites. Fits standard 3/8 inch arbor bench grinders and die grinders used in fabrication and industrial finishing applications.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician familiar with abrasive wheel mounting procedures. Ensure the grinder or spindle is fully powered down and unplugged before mounting or removing the wheel. Verify that the machine RPM rating meets or exceeds the wheel's rated maximum speed before operation. Follow ANSI B7.1 safety standards for abrasive wheel use, including the use of appropriate eye and face protection during operation.

Technical Specifications

• Wheel Diameter: 3 inches
• Arbor Size: 3/8 inch
• Abrasive Mineral: Aluminum Oxide (AO)
• Construction: Unitized
• Package Dimensions: 6.9 x 6.9 x 4.4 inches
• Weight: 0.05 pounds
• UOM: Each
• UPC: 00048011307824

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100048731