3M 7100077903 Unitized Abrasive Wheel 3 in Ao Deburring

Product Description

The 3M 7100077903 is a unitized abrasive wheel from the Standard Abrasives 700 Series, designed for mid-sequence metalworking tasks including deburring, cleaning, and surface conditioning. Built with medium-to-hard density aluminum oxide mineral on an open web construction, it delivers consistent stock removal with resistance to loading. The 3-inch diameter wheel mounts via a 1/4-inch arbor using a separately sold unitized wheel mandrel. It is well suited for ferrous and non-ferrous metals and is commonly used by fabricators, welders, and machinists working on production or maintenance lines.

This wheel is a strong fit for applications such as removing punched-hole burrs on stainless steel, cleaning heavy scale or weld discoloration, and removing medium-sized pits and scratches. Its harder density construction gives it an edge-durability advantage over 600 Series unitized wheels, making it appropriate for heavier-duty deburring cycles and repeated cleaning passes on hard metals. The wheel runs both clockwise and counterclockwise, which adds flexibility when pairing it with a range of bench or handheld rotary tools.

Key Features

• Medium-to-hard density aluminum oxide construction suited for mid-sequence and heavy-duty surface conditioning
• Increased edge durability compared to 600 Series unitized wheels for longer service life on demanding tasks
• Open web design resists loading, extending usable abrasive life
• Bidirectional operation — runs clockwise and counterclockwise for tool and machine versatility
• Aluminum oxide mineral compatible with ferrous and non-ferrous metals including aluminum
• 1/4-inch arbor center hole mounts with a standard unitized wheel mandrel (sold separately)

Compatibility

Designed for use with rotary tools and machines that accept a 1/4-inch arbor unitized wheel mandrel. Compatible with ferrous metals, non-ferrous metals, and aluminum in deburring and surface conditioning applications.

Installation Notes

Installation and operation of abrasive wheels should be performed by qualified personnel familiar with applicable ANSI B11 or OSHA abrasive wheel safety standards. Power down and disconnect the tool before mounting or changing the wheel. Verify that the tool RPM rating meets or exceeds the maximum rated speed of the wheel before use. Never exceed the wheel's rated speed and always use the correct mandrel arbor size to ensure secure seating.

Technical Specifications

• Wheel Diameter: 3 inches
• Arbor Size: 1/4 inch
• Series: Standard Abrasives 700 Series
• Abrasive Mineral: Aluminum Oxide
• Density: Medium to Hard
• Web Type: Open Web
• Rotation: Clockwise and Counterclockwise
• Weight: 1.438 pounds
• Package Dimensions: 7.31 x 4.19 x 3.88 inches
• Unit of Measure: Each
• Minimum Order Quantity: 10
• UPC: 051115332475

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100077903