Arc Abrasives 71-047802 Resin Fiber Disc Grit 36 Box of 25

Product Description

The ARC ABRASIVES 71-047802 is a Predator-series resin fiber disc designed for aggressive grinding and surface preparation on mild steel. At 4.5 inches in diameter with a 0.875-inch arbor hole and a 36-grit cut, this disc removes material fast while staying cost-effective for high-volume work. It uses self-sharpening abrasive grains that continuously expose fresh cutting edges as the disc wears, maintaining consistent cut rates throughout the disc life. Sold in boxes of 25, this disc suits fabrication shops, welding operations, and maintenance crews that cycle through abrasives regularly.

This disc is suited for use on mild steel in both production and job-site environments. The 36-grit rating makes it appropriate for weld blending, scale removal, and rapid stock removal where a finer finish is not the immediate priority. The resin fiber backing withstands the heat and mechanical stress generated during angle grinder operation. It is a practical alternative to full ceramic disc options when project requirements do not demand maximum ceramic-grade performance.

Key Features

• Self-sharpening abrasive grains maintain cut rate as the disc wears
• 36-grit rating suited for aggressive stock removal and weld blending on mild steel
• 4.5-inch diameter with 0.875-inch arbor fits standard angle grinders
• Resin fiber backing withstands heat and mechanical load during grinding
• Box of 25 discs supports consistent supply for production and field use
• Cost-effective alternative to full ceramic abrasive discs

Compatibility

Designed for use on mild steel surfaces with standard 4.5-inch angle grinders equipped with a 0.875-inch arbor.

Installation Notes

Resin fiber discs are installed and replaced by metalworkers, fabricators, and general maintenance trades using standard angle grinders. Before changing a disc, disconnect or power down the grinder completely and confirm the disc has stopped rotating. Inspect the backing pad for wear or damage before mounting a new disc, and verify the grinder speed rating does not exceed the disc speed rating. Follow applicable ANSI B7.1 safe use guidelines for abrasive wheels.

Technical Specifications

• Diameter: 4.5 inches
• Arbor Size: 0.875 inches
• Grit: 36
• Disc Type: Resin Fiber
• Application Material: Mild Steel
• Box Quantity: 25 discs
• Weight: 1.25 pounds

Standard Information

• Brand: ARC ABRASIVES
• Manufacturer Part Number: 71-047802