3M 7010327333 Flap Disc 577F 7 Inch 40 Grit Type 29

Product Description

The 3M 7010327333 is a Type 29 quick-change flap disc in the 577F series, designed for high-pressure metalworking applications. It measures 7 inches in diameter and carries a 40-grit alumina zirconia abrasive mineral on heavyweight polyester-backed flaps. The alumina zirconia mineral is paired with a grinding aid that delivers faster material removal compared to standard aluminum oxide discs. This disc handles weld removal, sharp-edge work, and beveling while simultaneously blending the surface — consolidating two steps into one pass. It is installed and used by metal fabricators, welders, and industrial maintenance technicians working on steel, stainless steel, and other metal substrates.

The 577F flap disc is suited for residential fabrication shops and heavy commercial or industrial metalworking environments. Its quick-change mount simplifies and speeds up disc swaps on compatible right-angle grinders, reducing downtime during production runs. The Type 29 conical geometry provides an optimal contact angle for aggressive grinding on flat and contoured metal surfaces, making it a practical choice for weld blending, edge preparation, and surface conditioning tasks.

Key Features

• Alumina zirconia mineral with grinding aid cuts faster than aluminum oxide across all metal types
• Type 29 conical flap geometry maximizes contact angle for aggressive stock removal
• Heavyweight polyester-backed flaps extend disc life under high-pressure applications
• Combines grinding and surface blending into a single step for time savings
• Quick-change mount design speeds up disc changes on compatible right-angle grinders
• 40-grit abrasive suitable for weld removal, beveling, and sharp-edge work

Compatibility

Designed as a quick-change flap disc for use with compatible right-angle grinders accepting 7-inch quick-change discs. Sold in a minimum quantity of 5 per order.

Installation Notes

Installation and disc changes should be performed by qualified personnel with the grinder fully powered down and unplugged before mounting or removing the disc. Verify the grinder spindle speed rating meets or exceeds the disc maximum RPM before use. Inspect the disc for damage before each use and discard any disc that shows signs of cracking, fraying, or delamination. Always use appropriate personal protective equipment including face shield, gloves, and hearing protection when operating angle grinders.

Technical Specifications

• Disc Diameter: 7 inches
• Grit: 40
• Disc Type: Type 29 (Conical / Flap)
• Abrasive Mineral: Alumina Zirconia with Grinding Aid
• Backing Material: Heavyweight Polyester
• Attachment Style: Quick Change
• Unit of Measure: Each
• Minimum Order Quantity: 5
• Weight: 0.84 pounds
• UPC: 00051141310121

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010327333