3M 7100133788 Scotch-brite Exl Pro Unitized Wheel 4 Inch Ao

Product Description

The 3M 7100133788 is a Scotch-Brite EXL PRO EX-UW unitized nonwoven abrasive wheel built for laser braze finishing on silicon bronze. The open web, layered construction controls heat buildup and resists loading, which keeps the wheel cutting cleanly across its service life. At 4 inches in diameter, it suits bench grinders and angle grinders used in fabrication and finishing operations. Licensed fabricators and metal finishing technicians are the primary installers. The wheel weighs 1.539 pounds and ships in a minimum quantity of 20 units per order.

This wheel is intended for blending and finishing silicon bronze components in laser brazing workflows. The nonwoven abrasive structure resists smearing, which reduces the surface preparation required after each pass and helps maintain consistent finish quality on heat-sensitive base materials. It is suited to production environments where repeatable edge quality on silicon bronze joints is required.

Key Features

• Nonwoven open web construction resists loading and extends effective service life
• Minimizes heat buildup to protect heat-sensitive materials during finishing
• Resists smearing for cleaner surfaces and reduced preparation between passes
• Layered unitized construction supports clockwise and counterclockwise operation
• Designed specifically for blending and finishing silicon bronze laser braze joints

Compatibility

Designed for laser braze finishing applications on silicon bronze; intended for use with bench grinders and angle grinders accepting 4-inch unitized abrasive wheels.

Installation Notes

Mounting and operation should be performed by qualified fabricators or metal finishing technicians familiar with abrasive wheel safety. Verify that the grinder spindle speed does not exceed the maximum rated RPM marked on the wheel before mounting. Inspect the wheel for damage before each use and discard any wheel showing cracks or delamination. Always use appropriate eye protection and guarding in accordance with ANSI B11 abrasive wheel safety standards.

Technical Specifications

• Diameter: 4 inches
• Abrasive Material: Aluminum Oxide
• Construction: Unitized nonwoven
• Weight: 1.539 pounds
• Package Dimensions: 8.63 x 8.63 x 2.63 inches
• Unit of Measure: Each
• Minimum Order Quantity: 20
• UPC: 076308132205

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100133788