3M 7010363146 Flap Disc 577F Type 27 7 Inch 40 Grit

Product Description

The 3M 7010363146 is a 577F quick-change flap disc designed for high-pressure metalworking applications where both grinding and surface blending are required in a single pass. Built with alumina zirconia mineral bonded to heavyweight polyester-backed flaps, this disc delivers aggressive stock removal alongside a blended finish without switching tools or abrasives. At 7 inches in diameter and 40 grit, it is engineered for heavy-duty tasks including weld removal, beveling, and sharp-edge work. The Type 27 (T27) depressed-center profile suits flat and slightly contoured work surfaces. Licensed trades and fabrication shops working with structural steel, stainless, and other hard metals will find this disc a reliable production tool.

This flap disc is suited for use in fabrication, structural steel work, shipbuilding, pipeline, and heavy manufacturing environments. The quick-change hub design reduces disc changeover time on compatible angle grinders, making it practical for high-volume grinding operations. Applications include weld bead removal, edge chamfering, beveling, and general surface conditioning on ferrous and non-ferrous metals. It is intended for professional metalworking use with angle grinders that accept 7-inch quick-change accessories.

Key Features

• Alumina zirconia mineral with grinding aid provides greater cutting power than standard aluminum oxide on all metal types
• Polyester-backed flaps rated for heavy-duty, high-pressure applications including beveling and sharp-edge work
• Combines grinding and blending into a single step, reducing total process time
• Quick-change hub design simplifies and speeds disc replacement on compatible grinders
• Type 27 depressed-center profile for flat surface and weld grinding

Compatibility

Designed for use with angle grinders that accept 7-inch quick-change flap discs with a Type 27 profile. Verify spindle compatibility and RPM rating of the grinder before mounting.

Installation Notes

Installation and disc changes should be performed by qualified personnel following applicable ANSI B7.1 and grinder manufacturer guidelines. Always power down and disconnect the grinder before mounting or removing a disc. Inspect the disc for damage before each use and confirm the grinder free speed does not exceed the disc maximum RPM rating. Eye protection, a face shield, and appropriate PPE are required during grinding operations.

Technical Specifications

• Disc Diameter: 7 inches
• Grit: 40
• Abrasive Mineral: Alumina Zirconia
• Backing Material: Heavyweight Polyester
• Disc Type: Type 27 (T27)
• Attachment Style: Quick Change
• Weight: 0.84 pounds
• UPC: 00051141309644

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010363146