3M 7100138327 Radial Bristle Brush Disc 6 in Refill

Product Description

The 3M 7100138327 is a radial bristle brush replacement disc designed as a refill pack for T-A style radial bristle brush assemblies. These discs provide consistent, controlled surface preparation and cleaning action across a range of coatings, mill scale, rust, and light burrs. At 6 inches in diameter, each disc mounts to a compatible benchmotor or angle grinder setup and delivers cleaning performance with minimal applied pressure. This reduces operator fatigue and the risk of substrate gouging compared to traditional wire brushes. Technicians in HVAC, plumbing, electrical, and general mechanical trades use these discs for pipe prep, weld cleanup, and metal surface conditioning.

These replacement discs are suited for both shop and field use where repeated surface cleaning tasks demand a consistent, refillable abrasive solution. They perform on steel, stainless steel, aluminum, and other metals, and work effectively on irregular or contoured surfaces due to the flexible radial bristle design. The pack format is appropriate for high-volume users who cycle through discs regularly and need an economical refill option without replacing the full brush assembly. Minimum order quantity is 2 packs.

Key Features

• 6-inch diameter disc fits T-A style radial bristle brush assemblies
• Cleans and conditions surfaces with minimal applied pressure
• Compatible with a variety of coatings, rust, scale, and light burrs
• Flexible bristle construction conforms to contoured and irregular surfaces
• Sold as a refill pack, compatible with universal benchmotor adapter setups
• Safer alternative to wire brushes — reduced wire fragment hazard

Compatibility

Designed as a replacement refill disc for 3M T-A style radial bristle brush assemblies used with benchmotor setups equipped with a universal benchmotor adapter.

Installation Notes

Installation should be performed by a qualified technician familiar with rotary abrasive tools and applicable shop safety practices. Disconnect and de-energize the benchmotor or grinder before changing discs. Verify that the disc diameter and arbor size are compatible with the tool before mounting. Always wear appropriate eye protection and follow ANSI B7.1 or applicable safety standards when operating rotary abrasive equipment.

Technical Specifications

• Diameter: 6 inches
• Weight: 1.98 pounds
• Unit of Measure: Pack
• Minimum Order Quantity: 2
• UPC: 00048011276229

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100138327