3M 7100113110 Cubitron Ii Hookit Disc 5 Inch 40 Grit

Product Description

The 3M 7100113110 is a Cubitron II Hookit cloth disc engineered for fast, aggressive material removal on demanding metals. Built around 3M Precision Shaped Grain technology, the disc delivers consistent, high cut rates throughout its service life. The X-weight polyester-cotton cloth backing handles medium to high pressure grinding without deforming. A grinding aid is bonded into the disc to reduce friction heat at the workpiece, and a resin bond system resists elevated temperatures to limit discoloration of finished surfaces. Rated at 12000 RPM and sized at 5 inches in diameter with 40 grit, this disc is suited for stock removal and weld blending in fabrication and metalworking shops.

This disc is designed for use on stainless steel, carbon steel, cobalt chrome, nickel alloys, and other exotic alloys where heat control and cut rate are critical. The Hookit attachment system allows fast disc changes without tools, reducing downtime during high-volume grinding operations. Typical applications include weld seam removal, edge grinding, and surface prep on sheet metal and structural components. It is commonly used by fabricators, welders, and metalworking technicians running right-angle grinders in production and job-shop environments.

Key Features

• Precision Shaped Grain delivers high cut rates and extended disc life compared to conventional abrasive grain
• Hookit attachment system enables fast, tool-free disc changes and allows the disc to be removed and reused
• X-weight polyester-cotton cloth backing provides durability under aggressive grinding pressure
• Integrated grinding aid reduces heat generation at the contact zone, protecting workpiece surface finish
• Resin bond resists heat buildup to minimize discoloration on stainless steel and nickel alloys
• 40 grit and 12000 RPM rating suited for rapid stock removal and weld blending

Compatibility

Designed for use with Hookit-compatible right-angle grinders and disc backup pads accepting 5-inch hook-and-loop abrasive discs. Suitable for grinding stainless steel, carbon steel, cobalt chrome, nickel alloys, and exotic alloys.

Installation Notes

Installation is performed by metalworking technicians or fabricators using a compatible Hookit backup pad on a right-angle grinder. Verify the grinder and backup pad are rated for the disc diameter and RPM before mounting. Inspect the disc for damage before each use and never operate above the rated speed. Ensure the workpiece is secured and appropriate PPE, including a face shield and gloves, is worn during grinding operations.

Technical Specifications

• Disc Diameter: 5 inches
• Grit: 40
• Maximum Speed: 12000 RPM
• Backing Material: X-weight polyester-cotton cloth
• Attachment Type: Hookit (hook-and-loop)
• Package Weight: 9.2 pounds
• Package Length: 21.71 inches
• Package Width: 5.88 inches
• Package Height: 6.2 inches
• UPC: 076308457155

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100113110