Norton 66253146920 Type 11 Grinding Wheel 5in 16 Grit

Product Description

The NORTON 66253146920 is a Type 11 snagging grinding wheel built for aggressive stock removal on ferrous metals, castings, and weld cleanup applications. It uses a Zirconia Alumina abrasive grain bonded with a resinoid bond, resulting in a hard Q-hardness rating that holds up under heavy pressure. At 5 inches in diameter with a 16 grit designation, this wheel falls in the very coarse range, making it well-suited for rapid material removal rather than finishing work. It is rated to a maximum of 7,260 RPM and mounts via a 5/8-11 threaded hub. The wheel weighs 3.3 pounds and carries the Bluefire trade designation within the NORTON abrasives line.

This wheel is designed for use on right-angle grinders and snagging grinders in foundry, fabrication, and heavy metalworking environments. The Type 11 flaring cup configuration concentrates cutting action along the face and edge, making it effective for blending, deburring, and removing flash from castings and weldments. It is appropriate for both shop and field use by fabricators, pipefitters, ironworkers, and maintenance tradespeople who need fast, consistent stock removal on rough surfaces.

Key Features

• Type 11 flaring cup geometry concentrates abrasive action for snagging and weld blending
• Zirconia Alumina grain provides a self-sharpening cutting action and extended wheel life under load
• 16 grit, very coarse classification for maximum material removal rate
• Q hardness rating (Hard) sustains wheel integrity under aggressive grinding pressure
• Resinoid bond construction absorbs vibration and maintains bond stability at operating speed
• 5/8-11 threaded hub for secure, standard mounting on compatible angle and snagging grinders

Compatibility

Designed for use on right-angle and snagging grinders with a 5/8-11 threaded spindle accepting a 5-inch Type 11 cup wheel. Always verify the grinder nameplate RPM rating meets or exceeds the 7,260 RPM maximum before mounting.

Installation Notes

Installation should be performed by a qualified operator familiar with abrasive wheel safety per ANSI B7.1 standards. Disconnect and lock out power to the grinder before mounting or removing the wheel. Inspect the wheel for cracks or damage before each use and run it at operating speed in a guarded area for at least one minute before applying it to the workpiece. Never exceed the 7,260 RPM maximum speed stamped on the wheel.