3M 7010310378 Unitized Abrasive Wheel 4 in Aluminum Oxide

Product Description

The 3M 7010310378 is an 800 Series unitized abrasive wheel designed for heavy-duty edge deburring and surface finishing on metal workpieces. Built with a hard-density construction and aluminum oxide mineral, this wheel delivers extra tough edge durability that outlasts standard 700 Series unitized wheels in demanding production and fabrication applications. At 4 inches in diameter with a 1/2 inch arbor hole, it mounts to angle grinders, bench grinders, and die grinders using a compatible unitized wheel mandrel (sold separately). Machinists, fabricators, and metalworking professionals install this wheel when consistent edge quality and extended abrasive life are required.

This wheel is suited for deburring, blending, and light polishing on ferrous and non-ferrous metals, including aluminum and stainless steel. The open web construction resists loading, which helps maintain cut rate and extends service life in continuous use. It runs both clockwise and counterclockwise, giving it broader compatibility across tool configurations found in fabrication shops and production lines. Typical applications include edge cleanup on cut or stamped parts and pre-finish polishing on stainless steel components.

Key Features

• Hard-density 800 Series construction provides increased edge durability over 700 Series wheels for heavy-duty tasks
• Aluminum oxide mineral works on ferrous and non-ferrous metals, including aluminum and stainless steel
• Open web resists loading and contributes to longer abrasive service life
• Runs clockwise and counterclockwise for versatility across tool and machine configurations
• 1/2 inch arbor center hole attaches to tool via unitized wheel mandrel (sold separately)
• 4 inch diameter suits handheld and bench-mounted grinding equipment

Compatibility

Designed as an OEM-style replacement or direct-use unitized abrasive wheel for angle grinders, die grinders, and bench grinders equipped with a compatible unitized wheel mandrel accepting a 1/2 inch arbor.

Installation Notes

Installation should be performed by qualified personnel familiar with abrasive wheel safety. Ensure the grinder or tool is powered off and unplugged before mounting or removing the wheel. Verify that the tool's rated RPM meets or exceeds the wheel's maximum rated speed before operation. A compatible unitized wheel mandrel is required and is not included with this wheel.

Technical Specifications

• Wheel Diameter: 4 inches
• Arbor Size: 1/2 inch
• Abrasive Mineral: Aluminum Oxide
• Series: 800 Series Unitized
• Wheel Density: Hard
• Rotation Direction: Clockwise and Counterclockwise
• Package Weight: 3.271 pounds
• Package Length: 8.38 inches
• Package Width: 8.38 inches
• Package Height: 3.69 inches
• UPC: 051115356389

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010310378