3M 7100066700 Cubitron Ii Hookit Disc 5 Inch 220 Grit

Product Description

The 3M 7100066700 is a coated abrasive disc from the Cubitron II line, built for aggressive stock removal in metalworking and fabrication applications. It uses 3M Precision Shaped Grain, a triangular ceramic mineral engineered to slice through material rather than plow or gouge like conventional abrasives. At 220 grit and 5 inches in diameter, this disc delivers a controlled cut with a fine finish, making it suitable for finish passes and surface prep on metal, welds, and similar substrates. The hook-and-loop backing allows for fast, tool-free disc changes, reducing downtime between passes.

This disc is intended for use with 5-inch hook-and-loop random orbital or disc sanders in professional fabrication, welding, and metalworking environments. It is primarily designed for stock removal applications on ferrous and non-ferrous metals, though it performs across a variety of solid substrates. Trade professionals including metal fabricators, welders, and maintenance technicians will find it well-suited to surface conditioning tasks where cut rate and disc longevity are priorities.

Key Features

• 3M Precision Shaped Grain technology cuts up to 2x faster than conventional abrasives
• Lasts up to 4x longer than conventional abrasive discs
• 220 grit provides fine stock removal and surface finishing capability
• 5-inch diameter fits standard hook-and-loop disc sanders and random orbital tools
• Hook-and-loop attachment enables quick disc changes without tools
• Ceramic grain slices through substrate rather than gouging, reducing heat buildup

Compatibility

Designed for use with 5-inch hook-and-loop random orbital sanders and disc grinders compatible with Hookit-style backing pads.

Installation Notes

Installation is performed by pressing the disc firmly onto a compatible 5-inch hook-and-loop backing pad until fully seated. Ensure the sander or grinder is powered off and disconnected before changing discs. Inspect the backing pad for wear or debris that could prevent proper adhesion before attaching a new disc. Follow all applicable shop safety protocols including eye protection and guarding requirements when operating powered abrasive tools.

Technical Specifications

• Diameter: 5 inches
• Grit: 220
• Abrasive Type: Precision Shaped Ceramic Grain
• Attachment Type: Hook and Loop (Hookit)
• Abrasive Construction: Coated
• Unit of Measure: Each
• Weight: 3.4 pounds
• Package Length: 13.7 inches
• Package Width: 5.8 inches
• Package Height: 6.1 inches

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100066700