Norton 662611-38584 Zirconia Alumina Fiber Disc 24 Grit

Product Description

The NORTON 662611-38584 is a zirconia alumina fiber disc using the NorZon F826 abrasive grain blend. It measures 9-1/8 inches in diameter with a 7/8-inch arbor hole and cuts at 24 grit, placing it firmly in the coarse stock-removal range. Fiber discs in this class are designed for use with right-angle grinders fitted with a rigid or semi-flexible backing pad. The NorZon zirconia alumina grain self-sharpens under pressure, maintaining aggressive cut rates on ferrous metals, stainless steel, and weld seams with less heat buildup than standard aluminum oxide alternatives. These discs are sold in quantities of 25 per package.

This disc is suited for heavy grinding, weld blending, and surface preparation on structural steel, plate steel, and stainless steel fabrications. Typical applications include removal of weld beads, mill scale, and surface defects prior to finishing. At 24 grit, it is best deployed early in a progression sequence before stepping up to finer grits for blending or finishing passes. Metal fabricators, welders, pipefitters, and ironworkers are the primary users of this product type in both shop and field environments.

Key Features

• NorZon F826 zirconia alumina grain for self-sharpening, aggressive stock removal
• 24 grit for coarse grinding and rapid material removal
• 9-1/8-inch diameter with 7/8-inch arbor hole fits standard right-angle grinder backing pads
• Fiber disc backing provides rigidity and durability under grinding pressure
• Sold in 25-disc packages, supporting production-level consumption

Compatibility

Designed for use with right-angle grinders paired with a rigid or semi-flexible backing pad sized for 9-1/8-inch fiber discs. No specific tool or system model compatibility was stated in the product data.

Installation Notes

Installation is performed by metalworking trades including fabricators, welders, and pipefitters. Before mounting, confirm the grinder is rated for the disc diameter and that the backing pad is in good condition with no cracks or deformation. Always ensure the grinder is unplugged or the power source is locked out before changing discs. Operate within the maximum RPM rating marked on the disc and wear appropriate PPE including a face shield and hearing protection.

Technical Specifications

• Abrasive Material: Zirconia Alumina (NorZon F826)
• Disc Diameter: 9-1/8 inches
• Arbor Hole Size: 7/8 inches
• Grit: 24
• Package Quantity: 25 discs
• Unit of Measure: Each
• Minimum Order Quantity: 25

Standard Information

• Brand: NORTON
• Manufacturer Part Number: 662611-38584