3M 7100113145 Cubitron Ii Hookit Disc 3 Inch 80 Grit

Product Description

The 3M 7100113145 is a Cubitron II Hookit Cloth Disc 947A designed for aggressive material removal on stainless steel, carbon steel, cobalt chrome, nickel alloys, and other exotic alloys. It uses 3M Precision Shaped Grain on an X-weight polyester-cotton cloth backing to deliver fast, consistent cuts under medium to high pressure. The disc measures 3 inches in diameter and is rated at 15000 RPM. A built-in grinding aid reduces heat buildup at the work surface. Resin bonding resists heat and helps prevent discoloration of the workpiece. This disc is suited to metal fabrication, weld blending, and surface prep work performed by welders, fabricators, and finishing technicians.

The 947A disc is built for medium to high pressure grinding applications where heat control and cut rate are both critical. It is commonly used on grinders and sanders in fabrication shops, aerospace component finishing, and heavy industrial maintenance. The Hookit attachment system allows fast disc changes without removing the backing pad, reducing downtime during continuous production runs. It fits standard Hookit-compatible backup pads used on random orbital and disc-style pneumatic or electric tools.

Key Features

• Precision Shaped Grain delivers fast cut rates and extended disc life on hard alloys
• Hookit attachment system enables tool-free disc changes and reuse throughout disc life
• X-weight polyester-cotton cloth backing withstands aggressive sanding pressure
• Built-in grinding aid reduces heat generation during metal removal
• Resin bond resists heat and minimizes workpiece discoloration
• Rated at 15000 RPM for use with compatible high-speed grinders

Compatibility

Designed for use with Hookit-compatible backup pads on pneumatic or electric disc grinders and random orbital sanders rated for 3 inch abrasive discs at or below 15000 RPM.

Installation Notes

Installation and disc changes should be performed with the grinder powered off and disconnected from the air supply or electrical source. Verify that the backup pad is rated for the tool speed before mounting the disc. Inspect the disc for damage before each use and do not exceed the 15000 RPM maximum rated speed. Follow applicable ANSI B7 abrasive safety standards and the tool and disc manufacturer guidelines for safe operation.

Technical Specifications

• Disc Diameter: 3 inches
• Grit: 80
• Maximum Speed: 15000 RPM
• Backing Material: X-weight polyester-cotton cloth
• Abrasive Grain: Precision Shaped Grain
• Bond Type: Resin
• Attachment Type: Hookit
• Package Weight: 2.528 pounds
• Package Dimensions: 6.88 x 6.88 x 5.88 inches
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100113145