3M 7100138300 Radial Bristle Brush 80 Grit with Adapter

Product Description

The 3M 7100138300 is a radial bristle brush designed as a durable, safer alternative to traditional wire brushes for surface preparation and cleaning tasks. Built with aluminum oxide and Cubitron abrasive grain, the bristles deliver consistent abrasive action with minimal applied pressure. At 6 inches in diameter with a 7/16-inch arbor hole and 1-inch brush width, this brush mounts easily on bench grinders and similar rotary equipment. A universal bench motor adapter is included in the package. Trades working on metal surfaces, welds, and coated materials will find this brush effective for deburring, cleaning, and light material removal without the wire-shedding hazard associated with conventional wire brushes.

This radial bristle brush is suited for metal fabrication, maintenance, and industrial cleaning applications. It works across a variety of coatings and base materials, making it a practical shop tool for HVAC technicians, pipefitters, electricians, and general maintenance personnel who need reliable surface prep without aggressive wire bristle risk. The aluminum oxide and Cubitron abrasive grain construction handles both light cleaning passes and moderate surface conditioning tasks in a single tool.

Key Features

• Aluminum oxide and Cubitron abrasive grain for consistent cutting action
• Cleans and preps surfaces with minimal applied pressure
• Safe alternative to wire brushes — no wire shedding or embedded bristle hazard
• 6-inch diameter with 80 grit rating for controlled surface conditioning
• Universal bench motor adapter included for quick mounting
• Compatible with a variety of coatings and base materials

Compatibility

Designed for use with bench grinders and rotary power tools accepting a standard 7/16-inch arbor. Included universal bench motor adapter broadens fitment across common shop equipment configurations.

Installation Notes

Mounting should be performed by a qualified technician following the equipment manufacturer's guidelines for wheel and brush installation. Always power down and de-energize the bench grinder or rotary tool before installing or removing the brush. Verify that the tool's rated RPM meets or exceeds the brush's minimum RPM requirement before operation. Wear appropriate eye protection and follow applicable ANSI safety standards for abrasive wheel use.

Technical Specifications

• Diameter: 6 inches
• Arbor Hole: 7/16 inches
• Width: 1 inch
• Grit: 80
• Abrasive Mineral: Aluminum oxide and Cubitron abrasive grain
• Weight: 0.52 pounds
• Includes: Universal bench motor adapter
• UOM: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100138300