Norton 66254430119 7 in 36 Grit Ceramic Alumina Fiber Disc

Product Description

The NORTON 66254430119 is a 7-inch fiber disc from the RazorStar series, engineered for aggressive material removal on metal, weld seams, and rough surfaces. It uses ceramic alumina abrasive, a self-sharpening grain that fractures during use to expose fresh cutting edges and maintain consistent stock removal rates. The disc is rated at 8,600 RPM and attaches via a 5/8-11 threaded arbor hole, making it compatible with standard angle grinders equipped with a threaded hub or backing pad. At 36 grit, this is a coarse-grade disc suited for heavy grinding tasks. Licensed electricians, pipefitters, ironworkers, welders, and general fabricators rely on this type of disc for initial surface prep and weld blending.

This disc is designed for use on angle grinders in fabrication shops, construction sites, and maintenance environments where rapid stock removal is required. The ceramic alumina grain performs well on stainless steel, carbon steel, and other ferrous metals. The coated, fabric-backed construction keeps the disc rigid and resistant to tearing under high-load grinding conditions. Each package contains one disc, with a minimum order quantity of 25 units, making this item appropriate for shop stocking or multi-job procurement.

Key Features

• Ceramic alumina abrasive grain self-sharpens during use for sustained cut rate
• 36 grit coarse grade for aggressive stock removal and weld blending
• 5/8-11 threaded arbor hole for direct mounting on standard angle grinder hubs
• Rated to 8,600 RPM for use with common 7-inch angle grinders
• Fabric backing provides rigidity and tear resistance under load
• RazorStar series coated abrasive construction for extended disc life

Compatibility

Designed for use with 7-inch angle grinders fitted with a 5/8-11 threaded hub or compatible backing pad. The threaded arbor attachment requires no separate retaining nut.

Installation Notes

Installation should be performed by a qualified operator familiar with angle grinder safety practices. Verify the grinder's no-load RPM rating does not exceed 8,600 RPM before mounting this disc. Inspect the disc for cracks or damage before each use and never use a damaged disc. Follow ANSI B7.1 and grinder manufacturer guidelines for proper mounting, guard installation, and personal protective equipment requirements.