Norton 66623303919 Deburring Disc 7 in Extra Coarse

Product Description

The NORTON 66623303919 is a 7-inch diameter deburring disc designed for aggressive material removal on metal surfaces. Built with a dual-abrasive composition of aluminum oxide and ceramic, this rigid disc delivers consistent cutting action across the full face of the wheel. It mounts via a 5/8-11 arbor thread, making it compatible with standard right-angle grinders and disc grinders used in fabrication and metalworking environments. Rated to 8,000 RPM, the disc operates safely at typical grinder speeds. At 1/2 inch thick and 0.57 pounds, it is compact enough for handheld use while providing the mass needed for stable stock removal. Licensed machinists, fabricators, and metal finishing technicians are the primary installers and users of this disc.

This deburring disc is suited for use in metal fabrication shops, pipe fitting operations, and general industrial maintenance where burrs, sharp edges, and surface irregularities must be removed quickly. The extra coarse grade makes it appropriate for initial deburring passes on steel, stainless, and similar ferrous and non-ferrous metals before finishing operations. It is a single-unit item sold individually and is well suited for both production environments and job-site use where a reliable arbor-mount disc is required.

Key Features

• Dual abrasive construction: aluminum oxide and ceramic for aggressive, consistent cutting
• Extra coarse grade for rapid burr removal and edge conditioning
• Rigid density rating of 7 for stable, controlled material removal
• 5/8-11 arbor thread fits standard angle grinders and disc grinders
• 8,000 RPM maximum speed rating for safe operation at common grinder speeds
• 7-inch diameter and 1/2-inch thickness provide broad contact area in a manageable form factor

Compatibility

Designed as an OEM-style replacement or direct-fit deburring disc for right-angle grinders and disc grinders equipped with a 5/8-11 arbor spindle.

Installation Notes

Installation should be performed by qualified metalworking or maintenance personnel familiar with abrasive disc safety. Always power down and disconnect the grinder before mounting or removing the disc. Confirm the tool spindle speed rating meets or exceeds the disc maximum RPM before use. Wear appropriate PPE including face shield, gloves, and hearing protection during operation, and inspect the disc for cracks or damage before each use.