3M 7000119474 Flap Disc 80 Grit 4.5 in Type 29

Product Description

The 3M 7000119474 is a coated abrasive flap disc designed for high-pressure metalworking applications including weld removal, beveling, and sharp-edge finishing. The disc uses alumina zirconia mineral combined with a grinding aid, delivering more cutting speed than standard aluminum oxide across all metal types. Flaps are backed with heavyweight polyester for durability under sustained load. At 13300 RPM maximum speed and a 4.5-inch diameter, this Type 29 disc grinds and blends in a single pass, reducing total labor time. Licensed trades and metalwork fabricators install this disc on standard right-angle grinders.

This flap disc is suited for residential and commercial metal fabrication, structural steel work, pipe fitting, and MRO applications. Typical uses include weld seam removal, edge preparation, and surface blending on carbon steel, stainless steel, and other metal substrates. The 80-grit cut makes it appropriate for aggressive stock removal while still leaving a workable blended surface finish. The quick-change design reduces downtime during disc swaps in production or field environments.

Key Features

• Alumina zirconia mineral with grinding aid cuts faster than aluminum oxide on all metal types
• Type 29 angled flap design combines grinding and blending in one step
• Heavyweight polyester-backed flaps extend disc life under high-pressure use including beveling and sharp-edge work
• Quick-change mounting simplifies disc swaps and reduces downtime
• Rated to 13300 RPM for use with standard right-angle grinders

Compatibility

Designed as an OEM-style replacement or direct-use flap disc for standard right-angle grinders accepting 4.5-inch Type 29 coated abrasive discs.

Installation Notes

Mounting and disc changes should be performed by qualified metalworkers or trades personnel with the grinder fully powered off and unplugged. Verify the grinder spindle speed does not exceed the 13300 RPM disc rating before operation. Inspect the disc for damage before each use and discard any disc showing tears, missing flaps, or delamination. Follow applicable ANSI B7.1 and OSHA abrasive wheel safety requirements during installation and use.