Arc Abrasives 71-077806 Resin Fiber Disc 7in Grit 80 25pk

Product Description

The ARC ABRASIVES 71-077806 is a resin fiber disc engineered for aggressive material removal on mild steel and other ferrous surfaces. Measuring 7 inches in diameter with a 7/8-inch arbor hole, this disc runs on standard angle grinders and fits common backing pad assemblies. The disc uses self-sharpening abrasive grains that continually expose fresh cutting edges as the disc wears, extending useful life and maintaining consistent cut rate throughout the disc's service. At grit 80, it is well suited for weld blending, surface conditioning, and rust or scale removal. Each box contains 25 discs, making it a practical stocking unit for shops and service contractors.

This disc is a cost-effective alternative to full ceramic abrasive discs, targeting applications where mild steel fabrication, maintenance grinding, and light weld cleanup are routine. It is commonly used in metal fabrication shops, maintenance and repair operations, and structural steel work. The 7-inch format is appropriate for larger-diameter right-angle grinders and sanding machines used in production or heavy maintenance environments. Metalworkers and fabricators looking to manage consumable costs without sacrificing cut consistency will find this disc a practical fit for everyday stock removal tasks.

Key Features

• Self-sharpening abrasive grains extend disc life and maintain cut rate
• Grit 80 provides aggressive stock removal suitable for weld blending and scale removal
• 7-inch diameter with 7/8-inch arbor fits standard angle grinder backing pads
• Cost-effective alternative to full ceramic abrasive discs
• Sold in boxes of 25 for efficient shop stocking
• Formulated for use on mild steel and similar ferrous materials

Compatibility

Designed for use with standard 7-inch angle grinders and backing pad assemblies that accept a 7/8-inch arbor resin fiber disc. Suitable for mild steel grinding and surface conditioning applications.

Installation Notes

Resin fiber discs are installed and removed by a licensed or qualified metalworker or grinding equipment operator. Before mounting, confirm the grinder's rated RPM meets or exceeds the disc's maximum operating speed and that the backing pad diameter matches the disc size. Always power down and unplug the grinder before changing discs. Wear appropriate PPE including a face shield, gloves, and hearing protection during operation.

Technical Specifications

• Disc Diameter: 7 inches
• Arbor Size: 7/8 inches
• Grit: 80
• Abrasive Type: Resin Fiber, Self-Sharpening Grain
• Application: Mild Steel
• Box Quantity: 25 discs
• Weight: 1.25 pounds
• Unit of Measure: Box

Standard Information

• Brand: ARC ABRASIVES
• Manufacturer Part Number: 71-077806