Arc Abrasives 71-10817FF Type 27 Flap Disc Grit 120

Product Description

The ARC ABRASIVES 71-10817FF is a Type 27 Predator flap disc engineered for aggressive material removal on metal surfaces. Measuring 4.5 inches in diameter with a 5/8-11 inch arbor, this disc is rated at 13,300 RPM and ships in a box of 10. The zirconia alumina abrasive construction delivers fast stock removal while maintaining disc life well beyond standard flap disc performance. It is sold by the box and suited for use on angle grinders in fabrication, welding, and metal finishing applications. Licensed welders, fabricators, and metal finishers are the primary installers and users of this abrasive product.

The 71-10817FF is well suited for grinding and blending on mild steel, high alloy steel, nickel alloy, and stainless steel. It handles weld seam removal, surface preparation, and deburring on flat or slightly contoured workpieces. The Type 27 depressed-center profile keeps the disc flush to the work surface, making it effective for flat grinding passes on sheet metal, structural steel, and weld joints in both shop and field environments. Each box contains 10 discs for consistent production-level use.

Key Features

• Type 27 depressed-center profile for flat surface grinding
• 4.5 inches x 5/8-11 inches arbor size fits standard angle grinders
• Grit 120 for finishing-stage stock removal and blend work
• Rated at 13,300 RPM for use with common 4.5-inch angle grinders
• Compatible with mild steel, high alloy, nickel alloy, and stainless steel
• Box quantity of 10 discs supports continuous production use

Compatibility

Designed for use with standard 4.5-inch angle grinders equipped with a 5/8-11 inch spindle thread. Suitable for mild steel, high alloy steel, nickel alloy, and stainless steel surfaces.

Installation Notes

Flap discs must be mounted and used by operators familiar with angle grinder safety practices. Always verify that the grinder spindle speed does not exceed the disc's 13,300 RPM rating before use. Inspect the disc for damage before mounting and ensure the arbor nut is properly tightened per the grinder manufacturer's specifications. Wear appropriate PPE including face shield, gloves, and hearing protection during operation.

Technical Specifications

• Disc Type: Type 27
• Diameter: 4.5 inches
• Arbor Size: 5/8-11 inches
• Grit: 120
• Max RPM: 13,300
• Box Quantity: 10 discs
• Weight: 0.6 pounds

Standard Information

• Brand: ARC ABRASIVES
• Manufacturer Part Number: 71-10817FF