Arc Abrasives 71-047808 Resin Fiber Disc 120 Grit 25 Pack

Product Description

The ARC ABRASIVES 71-047808 is a resin fiber disc engineered for grinding and surface conditioning on mild steel. Measuring 4.5 inches in diameter with a 0.875-inch arbor hole, this disc uses self-sharpening abrasive grains that continuously expose fresh cutting edges as the disc wears. At 120 grit, it delivers a fine-to-medium cut suited for blending, deburring, and light material removal. Each box contains 25 discs, making it a practical stock-and-go option for shops and field crews that burn through abrasives regularly. Licensed fabricators, welders, and metal finishers are the primary users of this product.

These discs are designed for use on angle grinders and right-angle disc grinders in fabrication shops, structural steel work, and general metalworking environments. The 120-grit grade is appropriate for finishing passes on mild steel where a smoother surface profile is required before coating, painting, or inspection. The self-sharpening grain structure reduces the frequency of disc changes, lowering cost per job on high-volume grinding tasks. The disc is a cost-effective alternative to full ceramic abrasive options while still delivering consistent cut performance on ferrous materials.

Key Features

• Self-sharpening abrasive grains continuously expose fresh cutting edges for consistent performance throughout disc life
• 120 grit rating suited for fine grinding, blending, and surface prep on mild steel
• 4.5-inch diameter with 0.875-inch arbor hole fits standard angle grinders
• 25 discs per box for cost-effective stocking
• Cost-effective alternative to full ceramic disc options for mild steel applications

Compatibility

Designed for use with standard 4.5-inch angle grinders and right-angle disc grinders accepting a 0.875-inch arbor. Intended for mild steel grinding and surface conditioning applications.

Installation Notes

These discs are installed and replaced by fabricators, welders, and metalworking professionals. Before mounting, power down and disconnect the grinder from its power source. Inspect the backing pad for wear or damage before installing a new disc, and ensure the arbor nut is tightened securely per the tool manufacturer's specifications. Always wear appropriate PPE including eye and face protection when operating grinding discs.

Technical Specifications

• Diameter: 4.5 inches
• Arbor Hole Size: 0.875 inches
• Grit: 120
• Box Quantity: 25 discs
• Weight: 1.25 pounds
• Unit of Measure: Box
• Application: Mild steel grinding and surface conditioning

Standard Information

• Brand: ARC ABRASIVES
• Manufacturer Part Number: 71-047808