3M 7010300167 Flap Disc 577F 7 Inch 80 Grit Type 29

Product Description

The 3M 7010300167 is the 577F alumina zirconia flap disc, a coated abrasive tool designed for high-pressure metalworking tasks including weld removal, sharp-edge work, and beveling. Built on a Type 29 conical profile, this 7-inch disc runs heavyweight polyester-backed flaps loaded with alumina zirconia mineral and a grinding aid. That combination delivers faster stock removal than standard aluminum oxide abrasives while simultaneously blending the surface, eliminating the need for a separate finishing step. At 80 grit, it fits between aggressive material removal and acceptable surface finish in a single pass. Weight is 0.54 pounds per disc.

This disc is suited for metal fabrication shops, structural steel work, and maintenance welding environments where operators need consistent performance on ferrous and non-ferrous metals. The Type 29 raised-hub geometry increases contact angle on flat and curved workpiece surfaces, making it effective for grinding welds flush and cutting bevels on plate and pipe. It is configured as a quick change disc, which reduces downtime between disc changes on supported quick change grinder systems.

Key Features

• Alumina zirconia mineral with grinding aid cuts faster than aluminum oxide across multiple metal types
• Heavyweight polyester-backed flaps extend disc life under high-pressure grinding conditions
• Flap construction combines grinding and surface blending in one step, reducing total labor time
• Type 29 conical profile improves contact angle on flat and contoured surfaces
• Quick change mount design simplifies and speeds disc replacement
• 80 grit balances aggressive material removal with a blended finish result

Compatibility

Designed as a quick change flap disc replacement for angle grinders and die grinders equipped with a compatible quick change arbor system accepting 7-inch Type 29 flap discs.

Installation Notes

Installation and use should be performed by qualified metalworking or fabrication personnel familiar with angle grinder safety procedures. Confirm the grinder RPM rating meets or exceeds the disc maximum RPM before mounting. Inspect the disc for damage before each use and discard any disc showing cracks, tears, or delamination. Always wear appropriate PPE including a face shield and gloves when operating grinding equipment.

Technical Specifications

• Disc Diameter: 7 inches
• Grit: 80
• Disc Type: Type 29 (Conical)
• Abrasive Mineral: Alumina Zirconia
• Backing Material: Heavyweight Polyester
• Attachment: Quick Change
• Weight: 0.54 pounds
• UPC: 00051141309941

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010300167