Norton 66623303920 Deburring Disc 7 in Extra Coarse

Product Description

The NORTON 66623303920 is a rigid deburring disc designed for aggressive material removal on metal workpieces. Built with a dual-abrasive blend of aluminum oxide and ceramic grain, this disc delivers extra coarse cutting action suited for deburring, edge blending, and surface conditioning tasks. It measures 7 inches in diameter with a 7/8 inch arbor hole and a thickness of 0.5 inches. Rated to 7,000 RPM, it is intended for use on angle grinders and compatible right-angle tools. Metalworking professionals and fabrication shops rely on this type of disc for fast stock removal and consistent edge treatment on steel, cast iron, and similar ferrous materials.

This deburring disc fits standard 7 inch angle grinders with a 7/8 inch arbor. Its rigid construction and extra coarse grade make it appropriate for heavy deburring work on structural steel, pipe ends, plate edges, and weld seams. The disc is suited for both shop and field use in industrial fabrication, metal service centers, and maintenance environments where fast, repeatable edge finishing is required.

Key Features

• Dual abrasive blend of aluminum oxide and ceramic grain for aggressive cutting performance
• Extra coarse grade optimized for heavy deburring and edge blending
• Rigid disc construction maintains consistent contact with the workpiece
• 7,000 RPM maximum speed rating for use with standard 7 inch angle grinders
• 7/8 inch arbor hole fits widely available grinder spindles
• 0.5 inch disc thickness provides stability during high-pressure passes

Compatibility

Designed as an OEM-style replacement or direct-use deburring disc for 7 inch angle grinders with a 7/8 inch arbor spindle. Verify your grinder's maximum RPM rating meets or exceeds the disc rating before use.

Installation Notes

Installation and operation should be performed by qualified metalworking or fabrication professionals familiar with abrasive wheel safety requirements. Always power down and unplug the grinder before mounting or removing any abrasive disc. Confirm the grinder guard is properly positioned and that the spindle speed does not exceed the disc's 7,000 RPM rating. Follow ANSI B7.1 and applicable workplace safety standards when operating grinding equipment.