Norton 666233-57288 Aluminum Oxide Fiber Disc 7 in 100 Grit

Product Description

The NORTON 666233-57288 is an aluminum oxide fiber disc engineered for aggressive material removal on metal, weld seams, and surface conditioning applications. Measuring 7 inches in diameter with a 7/8-inch arbor hole, this disc mounts directly to angle grinders and disc sanders used in fabrication, maintenance, and finishing work. The 100-grit abrasive grade makes it suited for moderate stock removal and blending passes where a finer scratch pattern is required. This disc is built on the Merit FX370 fiber backing, which provides the rigidity and heat resistance needed for sustained grinding pressure. Metalworkers, fabricators, and maintenance trades are the primary installers and users of this product.

This fiber disc is used in industrial and commercial settings for grinding and finishing ferrous and non-ferrous metals. Typical applications include weld blending, rust removal, surface prep before coating, and edge deburring. The 100-grit aluminum oxide abrasive cuts consistently and holds up under repeated use on mild steel, stainless steel, and aluminum. It is sold in a package of 25 discs, making it suitable for shop stock or job-lot purchasing.

Key Features

• Aluminum oxide abrasive grain for consistent cut and durability on metal surfaces
• Merit FX370 fiber backing provides rigidity and resistance to heat buildup during grinding
• 7-inch diameter with 7/8-inch arbor hole fits standard angle grinders and disc sanders
• 100 grit for moderate stock removal and surface blending
• Sold in a 25-disc pack to support ongoing shop or field use

Compatibility

Designed for use with angle grinders and disc sanders accepting a 7-inch fiber disc with a 7/8-inch arbor hole. Consult your tool manufacturer specifications to confirm maximum RPM ratings before mounting.

Installation Notes

Fiber discs must be installed on a matched backing pad sized for the disc diameter. Always confirm the tool RPM rating does not exceed the disc's rated speed before operation. Wear appropriate personal protective equipment including eye protection and gloves when operating grinding equipment. Inspect the disc for cracks or damage before each use and discard any disc that shows signs of wear through to the backing.

Technical Specifications

• Abrasive Material: Aluminum Oxide
• Backing: Merit FX370 Fiber
• Disc Diameter: 7 inches
• Arbor Hole: 7/8 inches
• Grit: 100
• Package Quantity: 25 discs
• Unit of Measure: Each
• Minimum Order Quantity: 25

Standard Information

• Brand: NORTON
• Manufacturer Part Number: 666233-57288