3M 7100105008 Flap Disc 7 Inch 80 Grit Right Angle

Product Description

The 3M 7100105008 is a Type 29 right-angle flap disc designed for aggressive metal grinding, beveling, weld removal, and edge deburring. Built with 3M Precision-Shaped Grain bonded to a durable polyester backing, this 7-inch, 80-grit disc delivers a fast, consistent cut on steel, stainless steel, and other metals while still leaving an acceptable surface finish. The polyester backing resists high unit pressure, making it suitable for demanding fabrication work where lesser discs break down prematurely. Each disc weighs approximately 3.685 pounds per case unit and is sold individually.

This flap disc is suited for both shop and field metalworking applications, including structural steel fabrication, pipeline work, pressure vessel manufacturing, and general weld finishing. It performs well in situations where operators need to blend welds, bevel plate edges, or deburr cut edges without risking gouging that is more common with bonded grinding wheels or fiber discs. Industrial fabricators, pipefitters, ironworkers, and maintenance welders are the primary installers and users of this disc. It mounts on a standard 7-inch right-angle grinder.

Key Features

• 3M Precision-Shaped Grain provides a fast, consistent cut rate throughout the life of the disc
• Individual flaps break down progressively, exposing fresh abrasive mineral as the disc wears
• Durable polyester backing withstands high unit pressure without delaminating
• Lower gouging risk compared to fiber discs and bonded grinding wheels
• Suitable for applications where surface finish quality matters alongside material removal
• Fits standard 7-inch right-angle grinders

Compatibility

Designed for use on standard 7-inch right-angle grinders. Suitable for grinding, beveling, and finishing on a variety of metals including steel and stainless steel.

Installation Notes

Mounting and operation of flap discs should follow the grinder manufacturer specifications and ANSI B7.1 safety standards. Inspect the disc for damage before each use and never exceed the maximum RPM rating marked on the disc. Wear appropriate PPE including face shield, gloves, and hearing protection during operation. Do not use on materials for which the disc is not rated.

Technical Specifications

• Disc Diameter: 7 inches
• Grit: 80
• Disc Type: Right Angle (Type 29)
• Abrasive Grain: 3M Precision-Shaped Grain (969F)
• Backing Material: Polyester
• Weight: 3.685 pounds
• UOM: Each
• UPC: 076308644111

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100105008