3M 7100142343 Quick Change Conditioning Disc 4.5 in Ao

Product Description

The 3M 7100142343 is a Quick Change Surface Conditioning RC Disc designed for prepping workpieces before final finishes and coatings. Built on an open-web RC material with aluminum oxide abrasive, the disc cleans and finishes in a single pass, reducing overall prep time. The RC backing breaks down under medium pressure to continuously expose fresh fibers and mineral, maintaining cut rate throughout the disc's life. Load-resistant construction resists clogging from paint and corrosion residue, making it effective on flatwork, composites, and softer metals including aluminum. Licensed tradespeople and fabricators installing or refinishing metal assemblies will find this disc a reliable single-step prep tool.

This disc is suited for residential and light commercial fabrication, metal finishing shops, and field service applications where surface prep is required before coating or bonding. Typical uses include blending weld seams, removing coatings, light deburring, and general surface finishing on flat panels and composite surfaces. The quick-change attachment system allows fast disc swaps without removing the backing pad, improving efficiency during high-volume or multi-step finishing work. It is rated at 1,916 rpm maximum operating speed.

Key Features

• Aluminum oxide on RC material delivers consistent initial and extended cut rate
• Load-resistant web resists clogging from paint, oxidation, and soft metal debris
• Open web conforms to surface irregularities and reduces gouging risk
• Suitable for blending, coating removal, light deburring, and finishing on flat surfaces
• Quick-change mounting system enables fast disc swaps and reduces downtime
• Available in dark brown extra coarse, brown coarse, maroon medium, and blue very fine grades

Compatibility

Designed as an OEM-style replacement quick-change disc compatible with standard quick-change disc backing pads and right-angle die grinders accepting quick-change accessories.

Installation Notes

Installation and disc changes should be performed by qualified metal finishing technicians or tradespeople familiar with abrasive tooling. Always power down and disconnect the tool from its power source before mounting or removing the disc. Confirm the tool's rated RPM meets or exceeds the disc's 1,916 rpm maximum operating speed before use. Wear appropriate PPE including eye protection and gloves during operation.

Technical Specifications

• Disc Diameter: 4.5 inches
• Abrasive Material: Aluminum Oxide
• Backing Material: RC (Open Web Surface Conditioning)
• Maximum Operating Speed: 1,916 rpm
• Package Weight: 5.06 pounds
• Package Length: 12.75 inches
• Package Width: 9.5 inches
• Package Height: 6.75 inches
• Unit of Measure: Each
• UPC: 051115369211

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100142343