3M 7000122055 Surface Conditioning Rc Disc 4.5 Inch Ao

Product Description

The 3M 7000122055 is a surface conditioning RC disc designed for deburring, blending, cleaning, and finishing work on composites and soft metals. Built with aluminum oxide on a resin cloth (RC) backing, it delivers good initial cut rate and extended cutting life without loading up on softer materials. The disc measures 4.5 inches in diameter with a 0.87 inch arbor hole and attaches via a hook-and-loop system, allowing fast pad changes without tools. Fabricators, metal finishers, and maintenance technicians reach for this disc when a single tool needs to handle multiple surface prep tasks at average to moderate pressure.

This disc is suited for flat surface applications on composites, aluminum, and other soft metals in both shop and field environments. The RC backing material provides edge flexibility, which helps maintain consistent contact across the work surface and reduces gouging at the disc perimeter. Typical uses include weld blending, coating removal, light deburring, and pre-finish surface prep. It fits standard 4.5 inch angle grinders equipped with hook-and-loop backup pads.

Key Features

• Aluminum oxide abrasive on RC backing for good initial and extended cut rate
• Hook-and-loop attachment for fast, tool-free disc changes
• Flexible edge construction reduces gouging and maintains surface contact
• Effective for deburring, blending, coating removal, and finishing in a single disc
• Optimized for flat surfaces on composites and soft metals at average operating pressure

Compatibility

Designed for use with 4.5 inch angle grinders fitted with a hook-and-loop backup pad. Most efficient on flat surfaces made of composites or soft metals.

Installation Notes

Mount to a compatible hook-and-loop backup pad on a 4.5 inch angle grinder before use. Confirm the grinder RPM rating meets or exceeds the disc RPM rating before operating. Wear appropriate PPE including face shield and gloves. Inspect the disc for damage before each use and replace if tears, cuts, or delamination are present.

Technical Specifications

• Diameter: 4.5 inches
• Arbor Size: 0.87 inches
• Abrasive Material: Aluminum Oxide
• Backing Material: Resin Cloth (RC)
• Attachment Type: Hook and Loop
• Package Weight: 5.51 pounds
• Package Length: 12.38 inches
• Package Width: 12.38 inches
• Package Height: 5.75 inches
• UPC: 051115357997

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000122055