Norton 662611-38454 Zirconia Alumina Fiber Disc 50 Grit 25-pack

Product Description

The NORTON 662611-38454 is a zirconia alumina fiber disc designed for aggressive material removal on metal, stainless steel, and other hard surfaces. Part of the NorZon F826 product line, this disc measures 4-1/2 inches in diameter with a 7/8-inch arbor hole and carries a 50-grit designation suited for heavy stock removal and weld blending. Fiber discs in this class are mounted to a rubber or plastic backing pad and used with right-angle grinders. They are a standard consumable for metal fabricators, pipefitters, ironworkers, and general industrial grinding applications where both cut rate and disc life matter.

This disc is used in industrial and commercial grinding operations where a fast-cutting, durable abrasive is required. The zirconia alumina grain self-sharpens during use, maintaining cut rate across the disc life and reducing the frequency of disc changes. Common applications include weld seam removal, edge grinding, surface conditioning, and deburring on ferrous and non-ferrous metals. Sold in a 25-pack, making it practical for shop stock or recurring field use.

Key Features

• Zirconia alumina grain (NorZon F826) self-sharpens for sustained cut rate and extended disc life
• 50 grit for aggressive stock removal and weld blending
• 4-1/2-inch diameter with 7/8-inch arbor hole fits standard right-angle grinders
• Fiber backing provides durability and flexibility under load
• Sold in 25-pack quantity for shop or field stocking

Compatibility

Designed for use with right-angle grinders accepting 4-1/2-inch fiber discs with a 7/8-inch arbor hole, when paired with an appropriate rubber or plastic backing pad.

Installation Notes

Fiber discs must be mounted on a correctly sized rigid or semi-rigid backing pad rated for the grinder RPM before use. Ensure the grinder is unplugged or power-isolated and the disc is fully seated and secured before operation. Inspect the disc for damage or delamination before each use and discard any disc that shows cracks or missing sections. Always use appropriate eye protection and follow ANSI B7.1 safety requirements for grinding wheel use.

Technical Specifications

• Abrasive Type: Zirconia Alumina (NorZon F826)
• Disc Diameter: 4-1/2 inches
• Arbor Hole Size: 7/8 inches
• Grit: 50
• Packaging Quantity: 25 discs per pack
• Unit of Measure: Each
• Minimum Order Quantity: 25

Standard Information

• Brand: NORTON
• Manufacturer Part Number: 662611-38454