3M 7010326755 Flap Disc 577F 4 Inch 80 Grit Type 29

Product Description

The 3M 7010326755 is a Type 29 quick-change flap disc designed for high-pressure metalworking applications. Built around alumina zirconia mineral with a grinding aid, this 4-inch, 80-grit disc delivers faster material removal than standard aluminum oxide abrasives across all metal types. Heavyweight polyester-backed flaps resist breakdown under sustained pressure, giving the disc extended service life in demanding tasks such as weld removal, beveling, and sharp-edge work. The quick-change attachment system reduces downtime between disc swaps, making it a practical choice for production-rate grinding environments. Licensed trade professionals and experienced fabricators install and operate this disc on compatible angle grinders.

This flap disc is suited for use on ferrous and non-ferrous metals in both fabrication shop and field settings. Common applications include weld seam removal, edge chamfering, and surface blending where a finished appearance is needed in a single pass. The Type 29 conical profile increases contact surface on flat workpieces, improving consistency across large weld beads and flat plate work. It is used in structural steel fabrication, pipe work, and general metal finishing where both aggressive material removal and a blended surface finish are required in one step.

Key Features

• Alumina zirconia mineral with grinding aid cuts faster than aluminum oxide on all metal types
• 80-grit abrasive balances aggressive stock removal with a blended surface finish
• Heavyweight polyester-backed flaps extend disc life under high-pressure applications
• Flap design combines grinding and surface blending into a single operation
• Quick-change system speeds disc replacement and reduces downtime
• Type 29 conical profile maximizes flat-surface contact area

Compatibility

Designed for use on angle grinders accepting 4-inch quick-change flap discs with a Type 29 profile. Verify grinder RPM rating meets or exceeds the disc maximum rated speed before installation.

Installation Notes

Installation and operation of grinding discs should be performed by qualified personnel familiar with abrasive wheel safety. Always disconnect or de-energize the grinder before mounting or removing the disc. Inspect the disc for cracks or damage before each use and discard any disc that shows signs of deterioration. Follow applicable ANSI B7.1 safety requirements for the use, care, and protection of abrasive wheels.

Technical Specifications

• Disc Diameter: 4 inches
• Grit: 80
• Disc Type: Type 29 (Conical)
• Abrasive Mineral: Alumina Zirconia
• Backing Material: Heavyweight Polyester
• Attachment Style: Quick Change
• Weight: 0.54 pounds
• Package Length: 6.4 inches
• Package Width: 5.8 inches
• Package Height: 6.2 inches
• Sold As: Each
• UPC: 00051141275321

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010326755