Norton 662611-38561 Zirconia Alumina Fiber Disc 50 Grit

Product Description

The NORTON 662611-38561 is a zirconia alumina fiber disc designed for aggressive material removal on metal fabrication applications. Built on the NorZon F826 platform, this disc uses a zirconia alumina abrasive grain that self-sharpens under pressure, maintaining a consistent cut rate throughout the disc life. At 50 grit, it is suited for rapid stock removal, weld blending, and surface conditioning on steel and stainless steel. The 5-inch diameter with a 7/8-inch arbor hole mounts directly to standard angle grinders and disc grinders used in production and maintenance environments. Metal fabricators, welders, and maintenance technicians are the primary installers and users of this product.

This fiber disc is used in industrial and commercial metal fabrication settings where high-speed grinding on ferrous and non-ferrous metals is required. Typical applications include weld seam removal, deburring, and preparation of steel surfaces before coating or inspection. The 50-grit construction delivers fast, aggressive cuts and is appropriate for initial passes where surface finish is secondary to material removal rate. This disc ships in a package quantity of 25, making it suitable for shop floor stock or contractor use.

Key Features

• Zirconia alumina grain (NorZon F826) self-sharpens for extended disc life and consistent cut rate
• 50 grit for fast, aggressive stock removal and weld blending
• 5-inch diameter fits standard angle grinders and disc grinders with a 7/8-inch arbor
• Fiber backing provides durability under heavy pressure and high-speed grinding
• Sold in a package of 25 discs for shop or job-site stocking

Compatibility

Designed for use with standard 5-inch angle grinders and disc grinders accepting a 7/8-inch arbor hole, commonly used on ferrous and non-ferrous metal surfaces.

Installation Notes

Fiber discs must be mounted on a matched backup pad rated for the disc diameter and grinder RPM before use. Confirm the grinder speed rating does not exceed the maximum RPM marked on the disc. Inspect each disc for cracks or damage before mounting, and replace any disc showing visible defects. Operators should wear appropriate PPE including eye protection and gloves when grinding.

Technical Specifications

• Abrasive Type: Zirconia Alumina (NorZon F826)
• Disc Diameter: 5 inches
• Arbor Size: 7/8 inches
• Grit: 50
• Package Quantity: 25
• Unit of Measure: Each
• Minimum Order Quantity: 25

Standard Information

• Brand: NORTON
• Manufacturer Part Number: 662611-38561