3M 7100100886 Roloc Fibre Disc 787C 4 Inch 60 Grit

Product Description

The 3M 7100100886 is a Roloc coated fibre disc designed for rapid material removal on hard-to-grind metals. Built around 3M Precision Shaped Grain, this 4-inch disc runs at up to 12000 RPM and delivers higher cut rates and cooler grinding temperatures compared to conventional fibre discs. A built-in grinding aid reduces heat buildup, making it well suited for heat-sensitive alloys such as stainless steel and high nickel alloys. A stiff fibre backing and strong resin bond provide durability and tear resistance through heavy-duty applications. Licensed HVAC, welding, and fabrication professionals are the primary installers of this product.

This disc is sized at 4 inches in diameter with a 60-grit abrasive surface and is intended for demanding metalworking tasks including weld removal, blending, beveling, edge chamfering, and finish refinement. It is particularly effective on stainless steel and high nickel alloys where heat control and consistent cut rate matter. The Roloc quick-change attachment system locks the disc securely into a compatible Roloc backing pad without the need for tools, reducing changeover time in production and service environments.

Key Features

• 3M Precision Shaped Grain delivers higher cut rates and cooler grinding versus conventional fibre discs
• Grinding aid minimizes heat buildup, protecting heat-sensitive alloys during aggressive stock removal
• Rated to 12000 RPM for use with compatible high-speed angle grinders and die grinders
• Stiff fibre backing and strong resin bond resist tearing under heavy load
• Roloc attachment system locks disc into place with no tools required
• 60-grit abrasive suitable for weld grinding, beveling, edge chamfering, and blending

Compatibility

Designed for use with Roloc-compatible backing pads on angle grinders and die grinders rated for 4-inch discs at or above 12000 RPM. Best suited for stainless steel and high nickel alloy workpieces.

Installation Notes

This disc is installed by fabricators, welders, and metalworking professionals using compatible Roloc backing pads. Always confirm the grinder is rated at or above the disc maximum speed of 12000 RPM before mounting. Disconnect or power down the grinder before attaching or removing the disc. Wear appropriate PPE including eye protection and gloves when operating abrasive discs.

Technical Specifications

• Disc Diameter: 4 inches
• Grit: 60
• Maximum Speed: 12000 RPM
• Abrasive Type: 3M Precision Shaped Grain
• Backing: Stiff fibre
• Attachment Type: Roloc quick-change
• Application: Coated abrasive disc
• Weight: 0.043 pounds
• UOM: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100100886