3M 7100113126 Cubitron Ii Hookit Disc 3 Inch 80 Grit

Product Description

The 3M 7100113126 is a Cubitron II Hookit Cloth Disc in the 947A series, designed for aggressive material removal on metal surfaces. It uses 3M Precision Shaped Grain bonded to an X-weight polyester-cotton cloth backing, producing fast, consistent cuts at up to 15000 RPM. A built-in grinding aid reduces heat buildup during use, which helps prevent surface discoloration and extends disc life. The resin bond system resists heat to maintain grain integrity under sustained load. This disc is suited for fabrication and finishing work performed by metalworkers, welders, and grinding technicians working with demanding alloys.

The 947A disc is designed for medium to high pressure grinding applications. It performs on stainless steel, carbon steel, cobalt chrome, nickel alloys, and other exotic alloys where heat control and cut rate are both critical. The Hookit attachment system allows quick disc changes without tools, making it practical for production environments where downtime between disc swaps adds up. At 3 inches in diameter with 80 grit, it fits compact right-angle grinders and die grinders used in tight clearance work and detail grinding.

Key Features

• Precision Shaped Grain delivers fast stock removal and consistent cut performance
• Hookit hook-and-loop attachment allows tool-free disc changes and disc reuse
• X-weight polyester-cotton cloth backing handles aggressive sanding pressure without tearing
• Grinding aid reduces heat and lowers grinding temperatures on metal surfaces
• Resin bond resists heat buildup and helps prevent workpiece discoloration
• Rated to 15000 RPM for use with standard compact angle grinders and die grinders

Compatibility

Designed for use with Hookit-compatible backup pads and right-angle grinders or die grinders accepting 3-inch discs. Suitable for grinding stainless steel, carbon steel, cobalt chrome, nickel alloys, and other exotic alloys.

Installation Notes

Confirm the backup pad is rated for 3-inch Hookit discs before mounting. Verify the grinder spindle speed does not exceed the 15000 RPM disc rating before operation. Allow the tool to reach full speed before contacting the workpiece, and keep the disc moving to avoid localized heat buildup. Worn or damaged discs should be removed from service immediately.

Technical Specifications

• Disc Diameter: 3 inches
• Grit: 80
• Maximum Speed: 15000 RPM
• Backing Material: X-weight polyester-cotton cloth
• Abrasive Type: Precision Shaped Grain
• Attachment Type: Hookit hook-and-loop
• Bond Type: Resin
• Weight: 2.56 pounds
• Package Dimensions: 6.88 inches x 6.88 inches x 5.88 inches
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100113126