3M 7100049934 Unitized Abrasive Wheel 3 Inch Aluminum Oxide

Product Description

The 3M 7100049934 is a 3-inch diameter unitized abrasive wheel built for heavy-duty edge deburring and surface finishing on ferrous and non-ferrous metals. This non-woven aluminum oxide wheel carries an extra hard density rating, placing it at the aggressive end of the Standard Abrasives 900 Series lineup. The construction delivers high toughness and edge durability, making it well suited for removing stubborn burrs and polishing harder metals where softer wheels wear down too quickly. Designed to mount via a unitized wheel mandrel, it installs on die grinders, bench grinders, and similar rotary tools used in fabrication and maintenance shops.

This wheel is a practical choice for metalworking professionals in manufacturing, fabrication, welding, and industrial maintenance applications. The aluminum oxide mineral performs reliably on steel, stainless steel, cast iron, aluminum, and other common metals. The extra hard density provides longer service life compared to standard 800 Series unitized wheels when working on hard metals or heavy material removal tasks. The wheel accepts both clockwise and counterclockwise rotation, which adds flexibility when pairing with different tool and machine configurations on the shop floor.

Key Features

• Extra hard density aluminum oxide construction for aggressive edge deburring and finishing on hard metals
• Non-woven abrasive wheel design delivers consistent cut rate throughout wheel life
• Runs clockwise and counterclockwise for greater tool and machine compatibility
• Higher material density and edge durability than 800 Series unitized wheels for extended life on heavy-duty tasks
• Aluminum oxide mineral is compatible with ferrous and non-ferrous metals including aluminum
• Center-hole design mounts to a standard unitized wheel mandrel (sold separately)

Compatibility

Designed for use with rotary tools that accept a unitized wheel mandrel. Fits standard center-hole arbor configurations typical of die grinders and bench grinder setups used in metal fabrication and finishing applications.

Installation Notes

Installation is typically performed by qualified metalworking or maintenance technicians. Power down and disconnect the tool from its power source before mounting or removing the wheel. Verify that the tool RPM rating meets or exceeds the wheel RPM rating before operation. The unitized wheel mandrel required for mounting is sold separately and must be correctly seated and tightened per the mandrel manufacturer instructions.

Technical Specifications

• Wheel Diameter: 3 inches
• Abrasive Mineral: Aluminum Oxide
• Series: 900 Series
• Density Grade: Extra Hard
• Construction: Non-Woven Unitized
• Rotation: Clockwise and Counterclockwise
• Weight: 0.889 pounds
• Package Dimensions: 7.31 x 4.19 x 3.88 inches
• UPC: 051115356877

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100049934