3M 7100340584 Ceramic Fibre Disc 7in 36 Grit Purple

Product Description

The 3M 7100340584 is a 7-inch diameter precision shaped ceramic fibre disc designed for aggressive material removal on metal and fabrication surfaces. Built with ceramic abrasive grain, this disc delivers consistent cut rates and extended service life compared to conventional alumina discs. Rated at 86,000 RPM, it is suited for use with high-speed right-angle grinders in demanding production and job-site environments. Licensed electricians, metal fabricators, pipefitters, and HVAC sheet metal workers are the primary installers and users of this product. The purple color designation identifies the ceramic grain formulation within the 3M fibre disc line.

This disc is used in industrial and trade applications where fast, controlled grinding of steel, stainless steel, and other hard metals is required. The precision shaped grain construction supports consistent surface contact and reduced loading during extended use. At 36 grit, it is positioned for heavy stock removal rather than finishing work, making it appropriate for weld blending, surface prep, and deburring tasks common in HVAC fabrication, plumbing rough-in, and structural metalwork.

Key Features

• Precision shaped ceramic abrasive grain for consistent, high-rate material removal
• 7-inch diameter suits standard right-angle grinder backing pads
• 36 grit formulation targets heavy stock removal and weld blending
• 86,000 RPM maximum operating speed rating
• Purple color identifies ceramic grain type within the product line

Compatibility

Designed for use with 7-inch right-angle grinder backing pads rated to the disc maximum operating speed. Confirm grinder and backing pad RPM ratings meet or exceed the disc rating before use.

Installation Notes

Installation and mounting must be performed by a qualified operator familiar with abrasive disc safety. Verify that the grinder and backing pad are rated at or above 86,000 RPM before mounting the disc. Inspect the disc for damage before each use and never operate a cracked or delaminated disc. Follow ANSI B7.1 and applicable OSHA abrasive wheel safety standards during use.

Technical Specifications

• Diameter: 7 inches
• Grit: 36
• Maximum Operating Speed: 86,000 RPM
• Abrasive Material: Ceramic
• Color: Purple

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100340584