Norton 666233-57285 Resin Fiber Disc 50 Grit 7in

Product Description

The NORTON 666233-57285 is a resin fiber disc engineered for heavy stock removal on metal and other tough surfaces. Built on an FX370 fiber backing and coated with aluminum oxide abrasive grain at 50 grit, this disc cuts aggressively while holding up under sustained pressure. At 7 inches in diameter with a 7/8-inch arbor hole, it mounts directly to standard angle grinders and disc grinders without adapters. The disc is well suited for fabricators, welders, and metal finishing tradespeople who need a cost-effective abrasive that performs in high-volume grinding applications.

This disc is commonly used in metal fabrication shops, structural steel work, weld blending, and surface preparation before coating or inspection. The 50-grit aluminum oxide grain is aggressive enough for rapid material removal on mild steel, stainless steel, and cast iron. It is a practical choice wherever controlled, heavy-duty grinding is required and abrasive consumption is high enough to make per-disc cost a factor in purchasing decisions.

Key Features

• 50-grit aluminum oxide grain for aggressive, fast stock removal
• FX370 resin fiber backing provides durability under load and flex resistance
• 7-inch diameter with 7/8-inch arbor hole fits standard angle grinders
• Cost-effective design suited for high-volume grinding and surface prep
• Consistent cut rate across weld removal, deburring, and blending tasks

Compatibility

Designed as a standard 7-inch resin fiber disc replacement for angle grinders and disc grinders accepting a 7/8-inch arbor, commonly used in metal fabrication and surface preparation applications.

Installation Notes

Installation should be performed by qualified operators familiar with angle grinder safety practices. Ensure the grinder is unplugged or the power source is isolated before mounting or removing the disc. Verify that the grinder's rated RPM meets or exceeds the disc's maximum RPM rating before operation. Always use the correct back-up pad and guard per the tool manufacturer's instructions and applicable ANSI B11 safety standards.

Technical Specifications

• Abrasive Material: Aluminum Oxide
• Backing Grade: FX370
• Grit: 50
• Disc Diameter: 7 inches
• Arbor Hole Size: 7/8 inches
• Package Weight: 3.2 pounds
• Unit of Measure: Box
• Minimum Order Quantity: 1

Standard Information

• Brand: NORTON
• Manufacturer Part Number: 666233-57285