3M 7100104884 Flap Disc 4.5 Inch 60 Grit Type 29

Product Description

The 3M 7100104884 is a Type 29 conical flap disc engineered for medium to high-pressure metal grinding applications. Built on a durable polyester backing and loaded with 3M Precision-Shaped Grain, this 4.5-inch, 60-grit disc delivers a consistently fast cut rate while still producing a smooth surface finish. As each flap wears, it breaks down to expose fresh abrasive mineral, maintaining cut performance throughout the full life of the disc. Licensed tradespeople and metal fabricators working with angle grinders will find it well suited for aggressive material removal without the gouging risk associated with bonded wheels or fiber discs.

This flap disc is designed for use on a variety of metals in fabrication, maintenance, and weld repair settings. Typical applications include beveling, weld removal, and edge deburring on structural steel, stainless steel, and other ferrous and non-ferrous metals. The Type 29 conical profile concentrates cutting pressure along the disc edge, making it especially effective at aggressive stock removal and blending in tight joint areas. It fits standard right-angle grinders accepting 4.5-inch discs.

Key Features

• 3M Precision-Shaped Grain for a fast, consistent cut rate throughout disc life
• Durable polyester backing withstands high unit pressure in aggressive grinding applications
• Sequential flap breakdown continuously exposes fresh abrasive mineral
• Type 29 conical geometry focuses pressure for effective beveling and weld removal
• Lower gouging risk compared to bonded abrasive wheels and fiber discs
• Suitable where both material removal rate and surface finish quality matter

Compatibility

Designed as a replacement-style flap disc for right-angle grinders accepting 4.5-inch Type 29 discs at 60 grit.

Installation Notes

Installation should be performed by qualified personnel following applicable ANSI and OSHA abrasive wheel safety standards. Confirm the grinder RPM rating meets or exceeds the disc maximum rated speed before mounting. Inspect the disc for damage before each use and never operate with a cracked or delaminated disc. Always use the appropriate guard and personal protective equipment including eye and face protection.