Norton 66623325934 Hook Loop Disc 320 Grit 3 Inch

Product Description

The NORTON 66623325934 is a 3-inch hook and loop abrasive disc designed for fine surface finishing and prep work. It uses a non-woven aluminum oxide construction rated at 320 grit, placing it in the Very Fine grade range. This disc attaches to hook-and-loop backing pads on random orbital sanders and angle grinders, making it a common choice for technicians and tradespeople performing surface conditioning, light deburring, or pre-finishing passes on metal, plastic, and composite substrates. The flexible construction conforms to irregular surfaces without gouging or leaving deep scratch patterns.

This disc suits applications where consistent fine scratch patterns are required before priming, coating, or final assembly. It is commonly used in HVAC shop fabrication, metal prep on enclosures and panels, plumbing fixture finishing, and light electrical panel surface conditioning. The non-woven structure resists loading on softer materials and helps maintain a uniform finish across the work surface. It is sold individually and sized for standard 3-inch hook-and-loop backing pads.

Key Features

• 320 grit aluminum oxide abrasive for Very Fine surface finishing
• Non-woven construction resists loading and conforms to contoured surfaces
• 3-inch diameter fits standard hook-and-loop backing pads
• Flexible disc body adapts to irregular workpiece geometry
• No vacuum holes — suited for solid backing pad configurations

Compatibility

Designed for use with standard 3-inch hook-and-loop backing pads on random orbital sanders and compatible rotary tools.

Installation Notes

Installation is performed by pressing the disc firmly onto a clean, dry hook-and-loop backing pad. Ensure the backing pad is free of debris before attaching to avoid reduced adhesion during use. Inspect the disc for tears or abrasive wear before each use and replace when the abrasive surface is depleted. Follow all applicable safety standards for abrasive tools, including use of appropriate eye protection and guarding.