3M 7000000557 Abrasive Disc 3 Inch P120 Ceramic Coated

Product Description

The 3M 7000000557 is a coated abrasive disc engineered for both stock removal and finishing work in demanding trade and industrial applications. It uses a blend of 3M ceramic abrasive grain and aluminum oxide that self-sharpens during use, delivering a faster, more consistent cut than standard aluminum oxide alone. The disc is 3 inches in diameter and carries a P120 grit rating. A heavy polyester backing resists water and supports medium-pressure grinding and sanding in both wet and dry conditions. A grinding aid built into the construction reduces heat buildup, making this disc well-suited for heat-sensitive alloys including stainless steel, nickel alloys, and titanium.

This disc is intended for use in fabrication shops, metalworking operations, and maintenance environments where precision surface finishing is required. Typical applications include weld blending, deburring, and surface prep on ferrous and non-ferrous metals. The Roloca attachment system allows fast disc changes without tools, reducing downtime during production or service work. It is appropriate for use on angle grinders and similar random orbital or disc-style power tools in professional settings.

Key Features

• Ceramic and aluminum oxide blend self-sharpens for improved cut-rate and durability over aluminum oxide alone
• 3M Roloca attachment system enables secure, efficient disc mounting and removal
• Heavy polyester backing supports medium-pressure applications in both wet and dry conditions
• Grinding aid reduces heat buildup for use on heat-sensitive alloys such as stainless steel, nickel alloys, and titanium
• Heat-resistant resin bonding holds abrasive to backing under pressure, heat, and moisture

Compatibility

Designed as an OEM-style coated abrasive disc for use with compatible 3-inch disc grinders and power tools equipped with a Roloca-style attachment interface.

Installation Notes

Disc installation and removal should be performed with the tool powered off and unplugged or with the battery pack removed. Inspect the disc for damage before each use and do not operate above the rated speed for the tool. Use appropriate personal protective equipment including eye protection and gloves when grinding or finishing metal surfaces.

Technical Specifications

• Disc Diameter: 3 inches
• Grit: P120
• Abrasive Type: Ceramic and Aluminum Oxide Blend
• Backing Material: Polyester
• Coating Type: Coated
• Application: Wet and Dry
• Weight: 0.02 pounds
• UPC: 00051144805136

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000000557