3M 7000046138 Scotch-brite Exl Unitized Wheel 8 in Fine

Product Description

The 3M 7000046138 is a Scotch-Brite EXL Unitized Wheel designed for smoothing, deburring, and surface finishing on metal alloys, plastics, and composites. Built with silicon carbide abrasive at a fine grit rating, this wheel delivers consistent stock removal and surface refinement without smearing or excessive heat buildup. The unitized construction bonds multiple layers of nonwoven abrasive into a single cohesive wheel, maintaining cut rate and finish quality as the wheel wears. It is sized at 8 inches in diameter and weighs 0.43 pounds. Fabricators, maintenance technicians, and metalworking shops use this wheel on bench grinders and pedestal units for production finishing and edge prep work.

This wheel is suited for deburring cut edges, blending welds, and finishing formed metal parts in both job shop and production environments. The conformable construction allows the abrasive to follow contoured and complex-shaped workpieces, making it useful for robotic processing cells as well as manual bench operations. It performs on steel, stainless, aluminum, titanium, and many engineering plastics and composites. The fine grit level targets final surface conditioning and light material removal rather than aggressive grinding, positioning this wheel in the finishing and polishing stage of a typical metalworking workflow.

Key Features

• Silicon carbide abrasive at fine grit for consistent surface finishing and deburring
• Unitized layered construction maintains performance as wheel diameter reduces with wear
• Runs clockwise or counterclockwise, offering flexibility on reversible spindle setups
• Conformable density allows contact with contoured and complex-shaped parts, including robotic processing applications
• Minimizes heat buildup, reducing thermal impact on heat-sensitive base materials
• Resists smearing for cleaner cut surfaces and reduced prep time between operations

Compatibility

Designed for use on bench grinders and pedestal grinders accepting 8-inch diameter unitized abrasive wheels. Suitable for finishing and deburring operations on metal alloys, plastics, and composites.

Installation Notes

Mounting should be performed by a qualified operator following the grinder manufacturer's spindle speed and flange requirements. Verify the machine's maximum RPM rating does not exceed the wheel's rated speed before mounting. Always power down and lock out the grinder before installing or removing the wheel. Inspect the wheel for damage before each use and do not operate a cracked or delaminated wheel.

Technical Specifications

• Abrasive Material: Silicon Carbide
• Grit: Fine
• Wheel Diameter: 8 inches
• Package Dimensions: 8.6 inches x 8.5 inches x 2.5 inches
• Weight: 0.43 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 4
• UPC: 00048011279381

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000046138