Arc Abrasives 71-077802 Resin Fiber Disc 7in Grit 36 25 Pack

Product Description

The ARC ABRASIVES 71-077802 is a Predator-series resin fiber disc designed for aggressive grinding and stock removal on mild steel and similar ferrous materials. Measuring 7 inches in diameter with a 7/8-inch arbor hole, this disc mounts to standard angle grinders and uses a coarse 36-grit abrasive for fast, heavy material removal. The self-sharpening grain construction continually exposes fresh cutting edges as the disc wears, maintaining consistent cut rate throughout the disc life. Sold in boxes of 25, this disc offers a cost-effective alternative to full ceramic abrasive products without sacrificing cutting performance on common fabrication tasks.

These resin fiber discs are suited for metal fabrication shops, structural steel work, weld blending, and general surface preparation on mild steel. The 36-grit rating makes them appropriate for initial grinding passes, weld seam removal, and scale cleanup rather than fine finishing work. The 25-disc box quantity supports regular production use where disc turnover is frequent. Metal fabricators, ironworkers, and maintenance technicians working with mild steel structures or equipment frames are the primary users of this product.

Key Features

• Self-sharpening grain continuously exposes fresh abrasive for consistent cut rate
• 36-grit coarse abrasive suited for heavy stock removal and weld blending on mild steel
• 7-inch diameter with 7/8-inch arbor hole fits standard angle grinder backing pads
• Cost-effective alternative to full ceramic disc materials for mild steel applications
• Box quantity of 25 discs supports ongoing production or service use

Compatibility

Designed for use with standard 7-inch angle grinders fitted with a matching resin fiber disc backing pad. Intended for mild steel grinding, surface preparation, and weld removal applications.

Installation Notes

Resin fiber discs require a rigid or semi-flexible backing pad rated for the disc diameter before mounting on an angle grinder. Verify the grinder and backing pad are rated at or above the disc maximum RPM before operation. Always wear appropriate PPE including face shield, gloves, and hearing protection when operating grinding equipment. Inspect each disc for cracks or damage before use and discard any disc showing signs of delamination or edge damage.

Technical Specifications

• Disc Diameter: 7 inches
• Arbor Hole Size: 7/8 inches
• Grit: 36
• Abrasive Type: Self-sharpening resin fiber
• Box Quantity: 25 discs
• Weight: 1.25 pounds

Standard Information

• Brand: ARC ABRASIVES
• Manufacturer Part Number: 71-077802