Norton 66254461170 Flap Disc 60 Grit Type 29 4.5 Inch

Product Description

The NORTON 66254461170 is a Type 29 flap disc designed for aggressive material removal on metal, weld seams, and fabricated surfaces. Built with zirconia alumina abrasive on a cloth backing, it delivers consistent cut rate and durability under heavy use. The angled flap design of the Type 29 geometry increases surface contact on flat and contoured workpieces, making it effective for both grinding and blending in a single pass. Rated at 13,300 RPM and sized at 4.5 inches with a 5/8-11 arbor attachment, this disc fits standard angle grinders used in metal fabrication, welding, and structural work. Grit is 60 medium grade, suited for stock removal and surface prep without excessive finishing.

This flap disc is used in metal fabrication shops, welding operations, and structural steel applications where rapid material removal and blending are required in the same operation. The Type 29 design performs well on flat stock and pipe, making it a common choice for fitters and welders working on weld spatter cleanup, edge blending, and surface conditioning. The 5/8-11 threaded arbor is the standard thread for most 4.5-inch angle grinders, keeping tool changes minimal on busy job sites or in shop settings.

Key Features

• Type 29 angled flap geometry for simultaneous grinding and blending
• Zirconia alumina abrasive provides aggressive cut and extended disc life
• Cloth backing supports flexibility and durability under load
• 60 grit medium grade suited for stock removal and weld cleanup
• 5/8-11 arbor attachment fits standard angle grinders
• 13,300 RPM maximum speed rating

Compatibility

Designed for use on 4.5-inch angle grinders with a 5/8-11 threaded spindle. Suitable for grinding and blending ferrous metals, stainless steel, and similar hard materials in fabrication and welding applications.

Installation Notes

Installation should be performed by a qualified operator familiar with angle grinder safety. Ensure the grinder is unplugged or the battery removed before mounting the disc. Verify the grinder spindle speed does not exceed the 13,300 RPM disc rating before operation. Always use the appropriate guard and personal protective equipment, including eye and face protection, per ANSI B11 and applicable OSHA standards.