Norton 69957370193 Ceramic Alumina Fiber Disc 36 Grit

Product Description

The NORTON 69957370193 is a ceramic alumina coated fiber disc built for aggressive stock removal on metal, weld seams, and hard-to-grind alloys. Rated at 11,000 RPM and manufactured on a resinoid bond over a fiber backing, this disc delivers consistent cut rates under sustained load. The 36-grit, very coarse grade removes material quickly and is well-suited for grinding, blending, and surface prep work where fine finish is not the priority. At 4-1/2 inches in diameter with a 7/8-inch arbor hole, it mounts directly to standard right-angle grinders. Licensed metal fabricators, welders, and maintenance professionals rely on this disc for production-level grinding tasks.

This fiber disc is designed for use on angle grinders in industrial and trade applications. Typical use cases include weld removal, edge grinding, casting cleanup, and surface conditioning on mild steel, stainless steel, and other ferrous metals. The ceramic alumina abrasive provides a self-sharpening cut that extends disc life compared to conventional aluminum oxide, making it a practical choice for high-volume grinding environments in fabrication shops, manufacturing facilities, and field service work.

Key Features

• Ceramic alumina abrasive for aggressive, self-sharpening cut on ferrous metals
• 36-grit very coarse grade suited for rapid stock removal and weld grinding
• Resinoid bond with fiber backing for durability under sustained grinding loads
• 11,000 RPM maximum speed rating for use on standard 4-1/2 inch angle grinders
• 7/8-inch arbor hole for direct mount to common right-angle grinder spindles
• Orange disc color for quick identification of grit grade in a multi-disc shop setting

Compatibility

Designed as an OEM-style replacement fiber disc for 4-1/2 inch right-angle grinders accepting a 7/8-inch arbor hole attachment. Minimum order quantity is 25 units per order.

Installation Notes

Installation is performed by metal fabricators, welders, and grinding professionals using standard right-angle grinder tooling. Always confirm the grinder's rated RPM meets or exceeds the disc's 11,000 RPM maximum before mounting. Ensure the grinder is fully powered down and unplugged before changing discs. Inspect the disc for cracks or damage before each use and never exceed the marked maximum speed rating.