3M 7010327066 Flap Disc 40 Grit Ceramic Type 29 7 Inch

Product Description

The 3M 7010327066 is a Type 29 ceramic flap disc designed for aggressive material removal on metal surfaces. Built around 3M 967A series Premium Ceramic Alumina abrasive bonded to a poly-cotton cloth backing, this disc delivers consistent cut rate and long service life on demanding applications. The Type 29 conical profile concentrates abrasive contact at the work surface, making it well-suited for weld removal and surface preparation where a flat Type 27 disc would lose efficiency. The fiberglass backing plate provides structural rigidity at high speeds. At 40 grit coarse grade, material removal is fast and aggressive.

This flap disc is intended for use on steel and stainless steel in professional fabrication, welding, and metal finishing environments. Typical applications include grinding down weld beads, cleaning mill scale, and preparing metal surfaces prior to coating or inspection. The threaded 5/8-11 arbor hole mounts directly to standard angle grinders used in industrial and trade settings. The high-density flap construction extends disc life compared to standard-density configurations, reducing changeover frequency during sustained work.

Key Features

• Premium Ceramic Alumina abrasive for high cut rate and extended disc life on steel and stainless steel
• Type 29 conical profile concentrates grinding pressure for efficient weld removal and blending
• Poly-cotton cloth backing with Y-weight designation provides flexibility and durability under load
• Fiberglass backing plate maintains disc integrity at rated speed
• High-density flap construction delivers longer service life per disc
• 5/8-11 threaded arbor hole for direct mount to standard angle grinders

Compatibility

Designed for use with standard angle grinders equipped with a 5/8-11 threaded spindle. Rated for steel and stainless steel material applications.

Installation Notes

Installation and operation of grinding discs should be performed by qualified personnel following ANSI B7.1 and applicable shop safety standards. Inspect the disc for damage before each use and do not operate above the rated maximum RPM. Ensure the grinder is powered off and unplugged before mounting or removing the disc. Always use appropriate eye, face, and hand protection when operating grinding equipment.