3M 7100104928 Flap Disc 5 Inch 80 Grit Cubitron Ii 969F

Product Description

The 3M 7100104928 is a Type 29 right-angle flap disc built around 3M Precision-Shaped Grain on a durable polyester backing. Sized at 5 inches in diameter and rated at 80 grit, the 969F disc is engineered for medium-to-high-pressure metal grinding tasks including beveling, weld removal, and edge deburring. The triangular ceramic grain fractures during use, continuously exposing fresh cutting edges so the disc maintains a fast, consistent cut rate from first contact to the end of its service life. The polyester backing resists deflection under high unit pressure, making this disc well-suited for demanding fabrication and production environments.

This flap disc is intended for use with right-angle grinders in metal fabrication, welding, and structural steel applications. It performs on a range of ferrous and non-ferrous metals where both material removal rate and surface finish quality matter. The 969F geometry is a common choice for shop fabricators, pipe welders, and structural ironworkers who need a disc that transitions smoothly between aggressive stock removal and finish work without swapping abrasives. Its open flap design presents a lower risk of gouging compared to fiber discs and bonded grinding wheels.

Key Features

• 3M Precision-Shaped Grain delivers a fast, aggressive cut on metal surfaces
• Individual flaps break down progressively, exposing fresh mineral for a consistent cut rate throughout disc life
• Durable polyester backing withstands high unit pressure during beveling, weld removal, and deburring
• Right-angle Type 29 geometry suits contouring and edge work
• Lower gouging risk compared to fiber discs and bonded wheels
• Suitable for applications where surface finish quality is a priority alongside material removal

Compatibility

Designed for use with standard right-angle grinders accepting 5-inch diameter flap discs. Verify arbor size and RPM rating of the grinder against the disc specifications before mounting.

Installation Notes

Installation and disc changes should be performed by a qualified operator following ANSI B7.1 and tool manufacturer guidelines. Power down and disconnect the grinder from its power source before mounting or removing the disc. Inspect the disc for damage before each use and do not use a disc that shows cracks, tears, or separation of the flap layers. Always use the appropriate guard and personal protective equipment including eye and face protection when operating angle grinders.

Technical Specifications

• Diameter: 5 inches
• Grit: 80
• Disc Type: Right Angle Flap Disc
• Abrasive Series: 969F
• Backing Material: Polyester
• Unit of Measure: Each
• Package Weight: 2.87 pounds
• Package Length: 8.88 inches
• Package Width: 5.75 inches
• Package Height: 6.13 inches
• UPC: 076308898491

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100104928