Norton 66254411528 Fiber Disc 120 Grit 7 Inch Ceramic

Product Description

The NORTON 66254411528 is a 7-inch ceramic alumina fiber disc engineered for aggressive material removal on metal, weld seams, and hard-to-grind surfaces. It carries a 120-grit, fine-grade abrasive bonded with a resinoid bond to an orange-colored fiber backing. The disc mounts via a standard arbor hole and is rated to a maximum of 8,600 RPM, making it suitable for use with most angle grinders and disc grinders in shop or field environments. Fabricators, welders, and pipefitters commonly use this disc for blending, finishing, and stock removal on steel and stainless steel workpieces.

This disc is well suited to metal fabrication, structural steel work, and weld finishing applications in both residential and light commercial settings. The ceramic alumina abrasive self-sharpens under heat and pressure, sustaining cut rate through extended use on ferrous and non-ferrous materials. It is sized at 7 inches in diameter with a 7/8-inch arbor hole, fitting grinders that accept standard 7-inch backing pads. The resinoid bond provides durability under the high-stress, high-heat conditions typical of sustained grinding operations.

Key Features

• Ceramic alumina abrasive for high cut rate and extended disc life
• 120-grit fine grade for blending and finishing passes on metal
• Resinoid bond withstands high-heat grinding conditions
• Fiber backing provides rigidity and support during aggressive grinding
• Maximum rated speed of 8,600 RPM for use with standard angle grinders
• Arbor hole attachment for quick mounting on compatible backing pads

Compatibility

Designed for use with 7-inch angle grinders and disc grinders equipped with a standard backing pad accepting a 7/8-inch arbor hole attachment.

Installation Notes

This disc should be installed and operated by personnel familiar with angle grinder safety practices. Inspect the disc for damage before mounting and confirm the grinder's rated RPM meets or exceeds the disc's 8,600 RPM maximum. Always install the appropriate backing pad before mounting the fiber disc, and ensure the arbor nut is properly tightened before operation. Wear ANSI-rated eye protection and a face shield when grinding.