3M 7100142216 Quick Change Abrasive Disc 3 Inch Ao

Product Description

The 3M 7100142216 is a Quick Change Surface Conditioning RC Disc designed for cleaning and finishing workpieces in a single pass before final coatings or finishes are applied. Built on an open-web RC substrate with aluminum oxide mineral, the disc delivers consistent cut rate from first contact through extended use. The RC material breaks down gradually under medium pressure to expose fresh abrasive fibers, and the open web resists loading from paint, corrosion, and soft-metal debris. Rated for use at up to 18000 RPM, the 3-inch disc accepts standard quick-change fastening systems for fast swaps without stopping the grinder.

This disc is suited for flatwork, composite panels, and softer metals such as aluminum. Typical applications include blending welds, removing coatings, light deburring, and surface prep on flat stock. The open-web construction responds to minor surface irregularities and reduces the risk of gouging. Available in multiple grades: dark brown extra coarse, brown coarse, maroon medium, and blue very fine, allowing the same tool setup to handle a range of prep stages.

Key Features

• Aluminum oxide on RC material provides consistent initial and extended cut rate
• Open-web substrate flexes to surface irregularities and resists gouging
• Load-resistant construction reduces clogging on composites and soft metals
• Quick-change attachment system speeds disc swaps and reduces downtime
• Rated at 18000 RPM for use with standard air and electric angle grinders
• Available in extra coarse, coarse, medium, and very fine grades

Compatibility

Designed for use with standard quick-change disc grinder systems accepting 3-inch surface conditioning discs. Well-suited for flatwork, composites, and soft metals including aluminum.

Installation Notes

Inspect the disc and the quick-change mandrel for damage before mounting. Verify the grinder's no-load RPM does not exceed the 18000 RPM disc rating before operation. Power down and disconnect the tool before changing discs. Always wear appropriate eye protection and follow applicable workplace safety standards when operating abrasive discs.

Technical Specifications

• Disc Diameter: 3 inches
• Abrasive Material: Aluminum Oxide
• Substrate: RC (Open Web)
• Maximum Speed: 18000 RPM
• Package Weight: 3.75 pounds
• Package Length: 12.75 inches
• Package Width: 9.5 inches
• Package Height: 6.75 inches
• Unit of Measure: Each
• Minimum Order Quantity: 25
• UPC: 051115331188

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100142216