3M 7000121019 Scotch-brite Exl Unitized Wheel 8 in Ao

Product Description

The 3M 7000121019 is a Scotch-Brite EXL Unitized Wheel designed for smoothing, deburring, and surface finishing on metal alloys, plastics, and composites. The wheel uses aluminum oxide abrasive in a soft, conformable, layered construction that maintains consistent contact with workpiece surfaces throughout the wheel's life. At 8 inches in diameter with a 5/8-inch arbor bore, it mounts to bench grinders, pedestal grinders, and automated finishing equipment. The unitized construction holds its shape and density from first use to last, delivering repeatable results without needing frequent dressing adjustments. It weighs 0.4 pounds and is sold individually.

This wheel is suited for metalworking shops, fabrication facilities, and automated robotic finishing lines where consistent edge treatment is required. Typical applications include deburring stamped and machined metal parts, blending weld seams, and finishing edges on stainless steel, aluminum, and other alloys. It is also effective on many plastics and composite materials where heat buildup must be minimized. The conformable structure makes it particularly useful for parts with complex profiles or irregular geometries that require even abrasive contact across contoured surfaces.

Key Features

• Soft, layered unitized construction conforms to complex part shapes including in robotic processing environments
• Operates in both clockwise and counterclockwise rotation directions
• Minimizes heat buildup during use, reducing risk of damage to heat-sensitive base materials
• Resists smearing for cleaner finished surfaces and reduced prep time between operations
• Wheel edge can be dressed to restore profile for deburring, finishing, and polishing tasks
• Aluminum oxide abrasive provides consistent cut on steel, stainless, aluminum, and non-ferrous alloys

Compatibility

Designed for use on bench grinders, pedestal grinders, and automated finishing equipment with a 5/8-inch arbor. Suitable for use on metal alloys, many plastics, and composite materials in fabrication and industrial finishing applications.

Installation Notes

Installation should be performed by a qualified operator following the grinder manufacturer's mounting instructions and ANSI B7.1 safety standards for abrasive wheels. Power down and lock out the grinder before mounting or removing the wheel. Confirm that the grinder's maximum RPM rating meets or exceeds the wheel's rated speed before operation. Inspect the wheel for damage before each use and do not use a wheel that shows cracking, gouging, or uneven wear.

Technical Specifications

• Diameter: 8 inches
• Arbor Size: 5/8 inch
• Abrasive Type: Aluminum Oxide (AO)
• Construction: Unitized
• Package Dimensions: 8.6 inches x 8.5 inches x 2.5 inches
• Weight: 0.4 pounds
• Sold As: Each
• UPC: 00048011280288

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000121019