3M 7100113114 Cubitron Ii Hookit Disc 947A 3 in 40 Grit

Product Description

The 3M 7100113114 is a Cubitron II Hookit Cloth Disc in the 947A series, designed for fast, aggressive material removal on metal surfaces. It features 3M Precision Shaped Grain bonded to an X-weight polyester-cotton cloth backing, delivering high cut rates with reduced heat buildup. A built-in grinding aid lowers grinding temperatures and helps prevent workpiece discoloration. The disc measures 3 inches in diameter and runs at a maximum speed of 15000 RPM. It is suited for medium to high pressure grinding applications and is installed by metalworkers, fabricators, and surface finishing technicians working in production and job-shop environments.

This disc is designed for use on stainless steel, carbon steel, nickel alloys, cobalt chrome, and other exotic alloys. The 40-grit abrasive grade makes it appropriate for stock removal and blending passes where aggressive cutting action is needed. The Hookit attachment system allows quick disc changes and disc reuse, reducing downtime during extended grinding operations. It is well suited for angle grinder and random orbital tool platforms that accept 3-inch Hookit-compatible backup pads.

Key Features

• Precision Shaped Grain delivers fast cut rates and consistent performance across the life of the disc
• Hookit attachment system allows tool-free disc changes and supports disc reuse
• X-weight polyester-cotton cloth backing provides durability under aggressive grinding pressure
• Built-in grinding aid reduces heat generation and helps prevent surface discoloration
• Resin bond resists heat breakdown during high-pressure applications
• 40-grit abrasive grade suited for stock removal on metal and exotic alloy workpieces

Compatibility

Designed for use with 3-inch Hookit-compatible backup pads on angle grinders and random orbital tools rated for abrasive disc use at 15000 RPM or higher.

Installation Notes

Installation and disc changes should be performed with the tool unplugged or the air supply disconnected. Verify that the backup pad is rated for the tool speed and is compatible with the Hookit attachment system before mounting the disc. Confirm the tool RPM rating meets or exceeds the disc maximum speed of 15000 RPM. Eye protection and appropriate PPE are required when operating grinding discs on metal.

Technical Specifications

• Series: 947A
• Diameter: 3 inches
• Grit: 40
• Maximum Speed: 15000 RPM
• Backing Material: X-weight polyester-cotton cloth
• Abrasive Grain: Precision Shaped Grain
• Bond Type: Resin
• Attachment Type: Hookit
• Weight: 3.36 pounds
• Package Dimensions: 6.88 x 6.88 x 5.88 inches
• UOM: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100113114