3M 7100104615 Flap Disc 4.5 Inch 80 Grit Type 29

Product Description

The 3M 7100104615 is a Cubitron II 969F flap disc designed for medium to high-pressure metal grinding applications. Built with 3M Precision-Shaped Grain bonded to a durable polyester backing, this 4.5-inch, 80-grit Type 29 disc delivers a fast, consistent cut rate across a range of metals while maintaining a smooth surface finish. The disc is engineered for right-angle grinder use and suits trade professionals who need reliable material removal without sacrificing finish quality. Individual flaps progressively break down during use, continuously exposing fresh abrasive grain to sustain cut performance through the life of the disc.

This flap disc is well suited for metal fabrication, welding, and mechanical trades where tasks such as beveling, weld removal, and edge deburring are routine. Its Type 29 conical profile allows greater surface contact on flat and contoured workpieces compared to a flat Type 27 disc. The 80-grit cut is positioned in the medium-aggressive range, making it appropriate for stock removal where a workable surface finish is still required. It is sold in a minimum quantity of 10 discs per order.

Key Features

• 3M Precision-Shaped Grain delivers fast, consistent cut rate on steel, stainless, and other metals
• Durable polyester backing withstands high unit pressure during aggressive grinding
• Individual flaps break down progressively, exposing fresh abrasive grain throughout disc life
• Type 29 right-angle profile increases surface contact on flat and contoured workpieces
• Lower gouging risk compared to fiber discs and bonded grinding wheels
• Suitable for applications where surface finish quality is a priority alongside material removal

Compatibility

Designed for use with right-angle grinders accepting 4.5-inch diameter abrasive flap discs with a standard arbor configuration.

Installation Notes

Installation and disc changes must be performed by a qualified operator with the grinder fully powered off and unplugged or locked out per applicable OSHA lockout/tagout procedures. Verify that the grinder's rated RPM meets or exceeds the maximum RPM marked on the disc before mounting. Inspect the disc for damage before each use and do not operate a disc that shows tears, separation, or delamination of the flaps. Appropriate PPE including eye protection, hearing protection, and gloves is required during operation.

Technical Specifications

• Disc Diameter: 4.5 inches
• Grit: 80
• Disc Type: Type 29 (Right Angle)
• Abrasive Grain: 3M Precision-Shaped Grain
• Backing Material: Polyester
• Package Dimensions: 7.13 x 5.25 x 5.63 inches
• Package Weight: 3.951 pounds
• Sold As: Each
• Minimum Order Quantity: 10
• UPC: 076308643930

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100104615