3M 7000120972 Surface Conditioning Star Brush 4 in

Product Description

The 3M 7000120972 is a surface conditioning star brush designed for cleaning and finishing the interior diameters of pipes and tubes. Constructed with a very fine grade aluminum oxide abrasive mineral, the star-tip geometry delivers consistent radial pressure across the full bore of the workpiece. At 4 inches in diameter and weighing 0.03 pounds, this brush is built for controlled material removal without aggressive cutting action. It is used by plumbers, pipefitters, and HVAC technicians who need a reliable, repeatable finish inside tube ends prior to joining or inspection.

This brush is suited for light deburring, surface prep, and cleaning inside pipe and tube inner diameters in both residential and commercial applications. The very fine abrasive grade makes it appropriate for finish work where aggressive stock removal would damage the bore surface or compromise a seal surface. Typical applications include copper, steel, and stainless tube preparation ahead of soldering, brazing, or mechanical coupling installation.

Key Features

• Star-tip design provides consistent inward pressure for uniform contact across the full interior bore
• Very fine grade aluminum oxide abrasive for controlled, light surface conditioning
• 4 inch diameter suits standard pipe and tube ID cleaning applications
• Lightweight at 0.03 pounds for easy handling in confined spaces
• Durable construction supports repeated use across multiple service calls

Compatibility

Designed as an OEM-style replacement surface conditioning brush for use in 4 inch inside-diameter pipe and tube cleaning and finishing applications.

Installation Notes

This brush is installed by HVAC technicians, plumbers, and pipefitters using standard low-speed rotating tools or manual chucking equipment. Always depressurize and isolate the pipe or tube section before beginning any internal surface work. Wear appropriate eye protection and gloves when operating rotary abrasive tools. Follow applicable codes and manufacturer tool-speed guidelines for abrasive accessories.

Technical Specifications

• Abrasive Mineral: Aluminum Oxide
• Abrasive Grade: Very Fine
• Diameter: 4 inches
• Weight: 0.03 pounds
• UPC: 00048011138046

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000120972