3M Unitized Wheel Mandrel 931, 1-1/2 in x 1/8 in x 1/2 in, Case of 5

• Designed to attach Scotch-Brite Unitized Wheels to rotary tools
• Max RPM 14,000
• Small size enables access to small or intricate workpieces
• Use with wheels 2”-3” in diameter and ¼” – 1” thick

A small but mighty abrasive accessory, 3M Unitized Wheel Mandrels secures Scotch-Brite Unitized Wheels (sold separately) to a rotary tool with a ¼” collet (such as a die grinder) for edge deburring and finishing.

Make the Most of Your Scotch Brite Unitized Wheels
Crafted from steel, 3M Unitized Wheel Mandrel also comes with two flanges that fit on either side of the wheel and a retainer nut that locks the wheel in place. Attach 3M Unitized Wheel Mandrel to tools like 3M Die Grinders (sold separately). These power tools are designed for continuous use and have features that enhance operator comfort and control. For example, the precision-balanced steel motor reduces vibration and weight, while 3M Gripping Material on the body enables a firm grip.

Complete Abrasive System Solutions
To complete the system, combine the wheel and mandrel with 3M Die Grinders (sold separately). 3M Die Grinders feature ¼” collets, which provide quick and easy attachment of the mandrel/wheel assembly. In addition, 3M Die Grinders are designed for continuous use and have ergonomic features that enhance operator comfort and control.

When this abrasive system, including the wheel, power tool and 3M Unitized Wheel Mandrel, come together, you’re one step closer to getting the job done.

Trusted 3M Unitized Mandrel

The 3M Unitized Wheel Mandrel 931 is designed specifically to attach Scotch-Brite Unitized Wheels securely to rotary tools. This model ensures reliable performance with its precise fit and durable construction.

Its compatibility with 3M products guarantees a seamless abrasive system. The 931 model comes in a pack of 5, making it convenient for multiple projects or replacements.

Compact Size For Access

Measuring 1-1/2 in x 1/8 in x 1/2 in, this mandrel’s small size allows you to reach tight or intricate workpieces easily. This makes it ideal for detailed edge deburring and finishing tasks.

Its compact dimensions help you work efficiently in confined spaces without sacrificing control or precision, enhancing your overall workflow.

Designed For Wheel Compatibility

This mandrel fits Scotch-Brite Unitized Wheels sized between 2” to 3” in diameter and ¼” to 1” thick. This range covers many common wheel sizes, providing versatility for different abrasive needs.

Using the correct wheel size ensures optimal performance and safety during operation. The mandrel’s design supports a secure fit for these wheel dimensions.

High-Speed Rotary Tool Use

The 3M Unitized Wheel Mandrel 931 supports a maximum speed of 14,000 RPM, making it suitable for high-speed rotary tools like die grinders. This speed rating ensures efficient material removal and finishing.

Its steel construction and included flanges with a retainer nut keep the wheel firmly in place even at high speeds, providing consistent results and operator confidence.

Complete Abrasive System Pack

Sold as a 5 ea/Case pack, this mandrel set offers enough units for multiple uses or team projects. It’s designed to work seamlessly with 3M Die Grinders and Scotch-Brite wheels for a full abrasive system.

Combining these components enhances operator comfort and control, thanks to features like 3M Gripping Material and precision-balanced motors on compatible tools.