Norton 66254419963 Flap Disc 4.5x7/8 36 Grit Type 29 10 Pack

Product Description

The NORTON 66254419963 is a Type 29 flap disc from the Powerflex line, designed for aggressive material removal and blending on metal surfaces. At 4.5 inches in diameter with a 7/8 inch arbor bore and a 36 grit abrasive, this disc cuts fast and is well suited for heavy stock removal, weld grinding, and surface conditioning. The conical Type 29 geometry keeps the abrasive cloth in consistent contact with the workpiece, producing a more aggressive cut than a flat Type 27 profile. Fabricators, ironworkers, pipefitters, and metal finishing tradespeople are the primary users of this disc.

This flap disc is intended for use on angle grinders in fabrication shops, job sites, and maintenance environments where metal grinding, deburring, or weld blending is required. The 36 grit rating makes it appropriate for initial material removal passes on mild steel, stainless steel, and other common structural metals. It is sold in a case quantity of 10 discs, making it practical for operations with consistent high-volume grinding needs.

Key Features

• Type 29 conical flap disc profile for aggressive contact angle and fast stock removal
• 4.5 inch diameter with 7/8 inch arbor bore fits standard angle grinders
• 36 grit abrasive for heavy material removal and initial weld grinding
• Powerflex construction for consistent performance across the disc life
• Case quantity of 10 discs minimizes reorder frequency for high-use operations
• Replaces NRT088341-94296 for direct substitution on existing orders

Compatibility

Fits standard angle grinders with a 7/8 inch arbor. Replaces NRT088341-94296. Designed as an OEM-style replacement flap disc for metal grinding and blending applications where a 4.5 inch Type 29 disc is specified.

Installation Notes

Installation and disc changes must be performed by a qualified operator following applicable ANSI B7.1 and grinder manufacturer safety guidelines. Ensure the grinder is unplugged or its power source is fully isolated before mounting or removing a flap disc. Verify the grinder RPM rating meets or exceeds the disc maximum RPM before use. Inspect the disc for damage before each use and do not use a disc that shows signs of delamination or cracking.

Technical Specifications

• Diameter: 4.5 inches
• Arbor Bore: 7/8 inch
• Grit: 36
• Disc Type: Type 29
• Product Line: Powerflex
• Quantity per Case: 10 each
• Unit of Measure: Each
• Minimum Order Quantity: 10

Standard Information

• Brand: NORTON
• Manufacturer Part Number: 66254419963