Norton 66254420010 Powerflex Flap Disc 7 in 36 Grit Type 29

Product Description

The NORTON 66254420010 is a Powerflex Type 29 flap disc engineered for aggressive grinding and blending on metal surfaces. Measuring 7 inches in diameter with a 5/8-11 arbor thread, this disc mounts directly to standard angle grinders used in fabrication, welding prep, and surface finishing work. The 36-grit abrasive provides fast stock removal, making it well suited for deburring, weld blending, and rust or scale removal on steel and other ferrous materials. The Type 29 conical shape presents the abrasive at an angle to the workpiece, increasing contact area and cutting efficiency compared to flat Type 27 discs.

This flap disc is intended for professional metal fabrication, structural steel work, pipe welding, and general maintenance grinding applications. The Powerflex backing material is designed to flex under load, allowing the disc to conform to contoured or irregular surfaces without losing abrasive contact. It is sold individually and available in case quantities of 10, making it practical for shop stocking and job-site supply. Metalworkers, welders, pipefitters, and maintenance technicians are the primary installers and users of this product.

Key Features

• Type 29 conical geometry increases surface contact for faster material removal than flat discs
• 36-grit abrasive delivers aggressive stock removal for weld blending and scale removal
• 7-inch diameter with 5/8-11 arbor fits standard angle grinders without an adapter
• Powerflex backing flexes to conform to contoured and irregular workpiece surfaces
• Case quantity of 10 supports high-volume shop and field use

Compatibility

Designed for use with standard 7-inch angle grinders equipped with a 5/8-11 threaded spindle.

Installation Notes

Installation and use of flap discs should be performed by qualified personnel familiar with angle grinder safety practices. Always confirm the grinder's rated RPM meets or exceeds the disc's maximum rated speed before mounting. Inspect the disc for damage before each use and discard any disc that shows signs of delamination or core damage. Wear appropriate PPE including a face shield, gloves, and hearing protection during operation.

Technical Specifications

• Disc Diameter: 7 inches
• Arbor Size: 5/8-11
• Grit: 36
• Disc Type: Type 29 (Conical)
• Series: Powerflex
• Unit of Measure: Each
• Minimum Order Quantity: 10

Standard Information

• Brand: NORTON
• Manufacturer Part Number: 66254420010