Norton 66623334884 Hook Loop Disc 4 in Aluminum Oxide Coarse

Product Description

The NORTON 66623334884 is a 4-inch hook and loop abrasive disc designed for surface preparation, blending, and finishing work on metal, wood, and composite materials. Built with a non-woven aluminum oxide construction and rated Coarse grade, this disc delivers aggressive material removal while maintaining a consistent scratch pattern. The hook and loop attachment system allows for quick disc changes without adhesive backing. At 13,000 RPM maximum speed, it is compatible with standard random-orbit and disc sanders used in fabrication, automotive, and general maintenance applications. Installation and removal require no tools, making it a practical choice for fast-paced service environments.

This disc is suited for coarse stock removal, weld blending, rust removal, and surface conditioning tasks. The non-woven construction resists loading and clogging, which extends usable disc life across ferrous and non-ferrous metal work as well as painted surfaces. It is commonly used by metalworkers, maintenance technicians, and fabricators working with angle grinders or random-orbit sanders equipped with hook and loop backup pads. The brown disc color is consistent with NORTON coarse non-woven product identification.

Key Features

• 4-inch diameter fits standard hook and loop backup pads
• Coarse grade aluminum oxide abrasive for aggressive surface material removal
• Non-woven construction resists loading and extends disc life
• 13,000 RPM maximum operating speed
• No vacuum holes — compatible with solid backup pads
• Hook and loop attachment for tool-free disc changes

Compatibility

Designed as a replacement-style hook and loop abrasive disc for use with 4-inch random-orbit sanders and angle grinders fitted with a hook and loop backup pad.

Installation Notes

Always verify the backup pad and tool are rated for at least 13,000 RPM before mounting this disc. Power down and disconnect the tool from its power source before attaching or removing the disc. Inspect the hook and loop backing surface for wear prior to installation to ensure secure engagement. Wear appropriate PPE including eye protection and gloves during operation.