Norton 66254419996 Powerflex Flap Disc 4.5 in 60 Grit Type 29

Product Description

The NORTON 66254419996 is a Powerflex Type 29 flap disc designed for aggressive material removal and blending on metal surfaces. Measuring 4.5 inches in diameter with a 5/8-11 threaded arbor, this disc mounts directly to standard angle grinders. The 60-grit abrasive provides a balance between stock removal and surface finishing, making it suitable for weld grinding, edge blending, and surface preparation on steel, stainless steel, and other metals. Sold individually with a minimum order quantity of 10, this disc is a practical choice for shop or field use by fabricators, ironworkers, pipefitters, and general metalworkers.

Type 29 flap discs feature a conical grinding face that contacts the workpiece at an angle, increasing surface contact and cutting aggressiveness compared to flat Type 27 discs. This geometry makes the 66254419996 well suited for working on flat surfaces, beveled welds, and contoured areas where a flat disc would lose contact. Typical applications include structural steel fabrication, pipeline prep, heavy equipment repair, and industrial maintenance grinding.

Key Features

• Type 29 conical profile increases surface contact for faster stock removal
• 60 grit abrasive balances aggressive cutting with moderate surface finish
• 4.5-inch diameter fits standard angle grinders with 5/8-11 arbor threads
• Powerflex construction provides consistent cut rate as disc wears
• Minimum order quantity of 10 supports ongoing shop or crew use

Compatibility

Designed for use with standard 4.5-inch angle grinders equipped with a 5/8-11 threaded spindle, which is the common arbor size for grinders in this disc diameter class.

Installation Notes

Flap discs are installed and removed by licensed or trained operators following grinder manufacturer guidelines and ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Before mounting, inspect the disc for cracks, chips, or damage and confirm the grinder's rated RPM meets or exceeds the disc's maximum RPM rating. Power down and disconnect the grinder from power before mounting or removing the disc. Always use the appropriate guard and personal protective equipment including eye and face protection when operating angle grinders.

Technical Specifications

• Disc Diameter: 4.5 inches
• Arbor Size: 5/8-11 threaded
• Grit: 60
• Disc Type: Type 29 (conical)
• Unit of Measure: Each
• Minimum Order Quantity: 10

Standard Information

• Brand: NORTON
• Manufacturer Part Number: 66254419996