Arc Abrasives 71-047801 Resin Fiber Disc Grit 24 25 Pack

Product Description

The ARC ABRASIVES 71-047801 is a Predator-series resin fiber disc designed for aggressive material removal on mild steel and similar ferrous surfaces. Measuring 4.5 inches in diameter with a 0.875-inch arbor hole, this disc runs on standard right-angle grinders and is built around self-sharpening abrasive grains that continuously expose fresh cutting edges as the disc wears. The Grit 24 designation puts this disc squarely in the coarse range, suited for weld blending, heavy stock removal, and surface preparation where speed matters more than finish. Each box contains 25 discs, making it a practical stocking unit for shops and field crews with steady grinding volume.

These discs are intended for use in fabrication shops, structural steel work, and general metal service applications where mild steel is the primary workpiece material. The coarse 24-grit cut makes them a go-to choice for removing mill scale, cleaning weld seams, and leveling uneven surfaces before finer finishing steps. The self-sharpening grain structure extends useful disc life compared to conventional aluminum oxide fiber discs, and the resin fiber backing provides the flexibility and heat resistance needed during sustained grinder operation. Sold by the box, these discs are appropriate for licensed tradespeople and professional fabricators who cycle through abrasives at volume.

Key Features

• Self-sharpening abrasive grains continuously expose fresh cutting edges for consistent material removal rate
• Grit 24 coarse cut for heavy stock removal, weld blending, and mill scale elimination
• 4.5-inch diameter with 0.875-inch arbor fits standard right-angle grinders
• Resin fiber backing provides flexibility and heat resistance during extended use
• Cost-effective alternative to full ceramic abrasive discs for mild steel applications
• 25 discs per box for efficient stocking and job-site supply management

Compatibility

Designed for use on mild steel with standard right-angle grinders accepting a 4.5-inch resin fiber disc with a 0.875-inch arbor hole.

Installation Notes

Resin fiber discs must be mounted with a compatible backing pad rated for the disc diameter before use. Verify the grinder RPM rating meets or exceeds the disc maximum RPM before operation. Always wear appropriate eye, face, and hand protection when operating angle grinders, and ensure the workpiece is secured. Inspect each disc for cracks or damage before mounting and discard any disc showing signs of deterioration.

Technical Specifications

• Disc Diameter: 4.5 inches
• Arbor Size: 0.875 inches
• Grit: 24
• Disc Type: Resin Fiber
• Application: Mild Steel
• Box Quantity: 25 discs
• Weight: 1.25 pounds per box
• Sold As: Box
• Minimum Order Quantity: 1 box

Standard Information

• Brand: ARC ABRASIVES
• Manufacturer Part Number: 71-047801