Arc Abrasives 10866FF Flap Disc 7x7/8 in Type 27 80 Grit

Product Description

The ARC ABRASIVES 10866FF is a Type 27 flap disc designed for general-purpose grinding and finishing on metal and composite surfaces. It measures 7 inches in diameter with a 7/8-inch arbor hole and carries an 80-grit abrasive rating, placing it in the medium-grit range suited for surface blending, weld seam cleanup, and light stock removal. The cotton backing provides structural strength and flexibility during operation, helping the disc maintain consistent abrasive contact across the workpiece. Metal fabricators, welders, and maintenance technicians are the primary users of this disc type.

This flap disc is well suited for work on mild steel, aluminum, and composite materials in fabrication shops, manufacturing environments, and field maintenance settings. The Type 27 profile features a flat grinding face, making it effective for flat surface work and inside corner access where a raised-hub disc would be awkward. At 80 grit, it removes material efficiently while still leaving a finish suitable for follow-up with finer abrasives.

Key Features

• Type 27 flat profile for flat surface grinding and blending
• 80-grit abrasive for medium stock removal and surface blending
• 7-inch diameter with 7/8-inch arbor for standard angle grinder compatibility
• Cotton backing adds strength and durability during high-load grinding
• Suitable for use on mild steel, aluminum, and composites

Compatibility

Designed for use with standard 7-inch angle grinders fitted with a 7/8-inch arbor. Suitable for grinding and finishing mild steel, aluminum, and composite materials.

Installation Notes

Installation should be performed by a qualified operator familiar with angle grinder safety practices. Ensure the grinder is unplugged or the power source is locked out before mounting or removing the disc. Verify that the grinder RPM rating meets or exceeds the disc RPM rating before use. Inspect the disc for damage before each use and discard any disc showing cracks, tears, or delamination.

Technical Specifications

• Disc Diameter: 7 inches
• Arbor Size: 7/8 inches
• Disc Type: Type 27
• Grit: 80
• Backing Material: Cotton
• Weight: 0.12 pounds
• Sold As: Each
• Minimum Order Quantity: 10

Standard Information

• Brand: ARC ABRASIVES
• Manufacturer Part Number: 10866FF