3M 7100067989 Quick Change Disc 1.5 in Aluminum Oxide Very Fine

Product Description

The 3M 7100067989 is a Quick Change Surface Conditioning RC Disc designed for single-step cleaning and finishing of workpieces prior to final coatings or finishes. Built on an open-web RC substrate with aluminum oxide abrasive mineral, the disc breaks down under medium pressure to continuously expose fresh fibers and cutting mineral. This self-renewing action maintains a consistent cut rate and resists loading from paint, corrosion, and soft-metal debris. The disc mounts via a quick-change hub for fast swapping between operations. It is identified by its blue color, indicating a very fine grade.

This disc is suited for flatwork, composite panels, and softer metals such as aluminum. Typical applications include blending, coating removal, light deburring, and surface finishing on flat or mildly contoured parts. The open-web construction conforms to minor surface irregularities and reduces the risk of gouging. It is commonly used in metal fabrication, aerospace prep, and general manufacturing environments where surface condition quality directly affects coating adhesion and finish consistency.

Key Features

• Aluminum oxide mineral on RC open-web material delivers good initial and sustained cut rate
• Load-resistant substrate resists clogging from paint, corrosion, and soft-metal swarf
• Open-web construction conforms to surface irregularities and minimizes gouging
• Quick-change mounting system allows fast disc swaps without additional tooling
• Blue color coding identifies very fine grade for clear grade selection at the workstation
• Suited for blending, coating removal, finishing, and light deburring on flat surfaces

Compatibility

Designed for use with standard quick-change disc holders and right-angle die grinders or finishing tools that accept quick-change RC-style discs.

Installation Notes

Installation and disc changes should be performed with the tool powered off and air supply disconnected. Verify that the quick-change mandrel is rated for the tool RPM before mounting the disc. Wear appropriate eye and hand protection during installation and operation. Inspect the disc for damage before each use and replace if the substrate shows tears or excessive wear.

Technical Specifications

• Disc Diameter: 1.5 inches
• Abrasive Mineral: Aluminum Oxide
• Grade: Very Fine
• Color: Blue
• Backing Material: RC Open-Web
• Package Weight: 4.311 pounds
• Package Length: 23.75 inches
• Package Width: 9.63 inches
• Package Height: 5.13 inches
• Unit of Measure: Each
• UPC: 051115369389

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100067989