Norton 666233-55602 Ceramic Alumina Fiber Disc 36 Grit

Product Description

The NORTON 666233-55602 is a ceramic alumina fiber disc designed for aggressive material removal on metal, weld seams, and hard surfaces. Measuring 4.5 inches in diameter with a 7/8-inch arbor hole, this disc mounts directly to standard angle grinders. At 36 grit, it delivers coarse stock removal suited to grinding, blending, and surface preparation tasks. The ceramic alumina abrasive grain self-sharpens during use, maintaining cut rate and extending disc life compared to conventional aluminum oxide. These discs are sold in packs of 25, making them practical for production environments and service contractors who go through abrasives at volume.

This disc is well-suited for fabrication shops, pipe and structural steel work, and heavy surface prep applications. The 4.5-inch diameter fits the most common angle grinder platform used in industrial and field settings. Typical users include welders, pipefitters, ironworkers, and maintenance contractors who need a consistent, fast-cutting disc for grinding and blending on ferrous and non-ferrous metals. The 36-grit designation makes it appropriate for initial material removal rather than finishing passes.

Key Features

• Ceramic alumina grain self-sharpens under pressure for sustained cut rate
• 36 grit for aggressive stock removal and weld grinding
• 4.5-inch diameter with 7/8-inch arbor hole fits standard angle grinders
• Sold in 25-disc packs for production and high-volume use
• Fiber disc backing provides flexibility for contoured surface work

Compatibility

Designed as an OEM-style replacement-grade ceramic alumina fiber disc compatible with standard 4.5-inch angle grinders accepting a 7/8-inch arbor.

Installation Notes

Fiber discs of this size are installed and serviced by welders, fabricators, and maintenance trades using standard angle grinders. Before mounting, inspect the backing pad and disc for damage and confirm the grinder RPM rating meets or exceeds the disc rating. Always install the proper backing pad for fiber discs and secure the disc firmly before operation. Wear appropriate PPE including face shield and gloves during use.

Technical Specifications

• Abrasive Type: Ceramic Alumina
• Disc Diameter: 4.5 inches
• Arbor Hole: 0.875 inches (7/8 inch)
• Grit: 36
• Pack Quantity: 25 discs
• Unit of Measure: Each
• Minimum Order Quantity: 25

Standard Information

• Brand: NORTON
• Manufacturer Part Number: 666233-55602