3M 7100100986 Roloca 782C Fiber Disc 80 Grit 3 Inch

Product Description

The 3M 7100100986 is a coated fiber disc in the Roloca 782C series, designed for high-speed material removal on carbon steel. Built around 3M Precision Shaped Grain abrasive technology, it delivers faster cut rates and longer service life compared to conventional fiber discs. The disc runs at up to 12000 RPM and features an 80 grit rating suited for aggressive stock removal. A stiff fiber backing paired with a strong resin bond resists tearing under load. The Roloca attachment system locks the disc to the backup pad without tools, reducing changeover time on the job.

This disc is intended for heavy-duty metalworking tasks in fabrication shops, structural steel work, and maintenance welding environments. Typical applications include weld removal, beveling, edge chamfering, blending, and finish refinement on carbon steel workpieces. At 3 inches in diameter, it fits compact angle grinders and die grinders commonly used in tight-clearance or detailed work areas. Licensed metalworkers and welding fabricators are the primary installers and users of this product.

Key Features

• 3M Precision Shaped Grain abrasive for higher cut rates and extended disc life
• 80 grit rating handles weld grinding, beveling, and edge chamfering
• Rated to 12000 RPM for use with standard angle and die grinders
• Stiff fiber backing and strong resin bond provide tear resistance under load
• Roloca attachment system secures disc to backup pad with no tools required
• Long-lasting mineral abrasive helps lower cost per part

Compatibility

Designed for use with Roloca-compatible backup pads on angle grinders and die grinders that accept 3 inch fiber discs rated to 12000 RPM or higher.

Installation Notes

Ensure the grinder is powered off and unplugged before mounting or removing the disc. Verify the grinder spindle speed does not exceed the disc maximum RPM rating before operation. Use only a compatible Roloca backup pad to ensure the locking attachment seats correctly. Operators should wear appropriate PPE including eye protection and gloves when using abrasive discs.

Technical Specifications

• Disc Diameter: 3 inches
• Grit: 80
• Maximum Speed: 12000 RPM
• Abrasive Type: Precision Shaped Grain
• Backing: Stiff fiber
• Bond: Resin
• Weight: 3.272 pounds
• UOM: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100100986