Norton 66252838457 Type 27 Grinding Wheel 4.5in 36 Grit

Product Description

The NORTON 66252838457 is a Type 27 depressed center grinding wheel designed for use with angle grinders in metal fabrication, weld grinding, and surface preparation applications. Built with a ceramic alumina abrasive and resinoid bond, this wheel operates at a maximum of 13,580 RPM and delivers aggressive stock removal at a coarse 36 grit. The 5/8-11 threaded arbor hole provides a secure, direct mount to standard angle grinder spindles. At 4.5 inches in diameter and 1/16 inch thick, it is suited for controlled grinding passes on ferrous and non-ferrous workpieces. Installers and fabricators in HVAC, plumbing, electrical, and structural trades reach for this wheel when fast, reliable material removal is the priority.

This wheel fits standard 4.5-inch angle grinders equipped with a 5/8-11 threaded spindle. It is commonly used in field and shop settings for grinding welds, deburring cut edges, and removing scale or surface oxidation from pipe, sheet metal, structural steel, and similar materials. The coarse 36 grit rating makes it appropriate for aggressive grinding rather than finishing passes. It is sold individually with a minimum order quantity of 10 units per purchase.

Key Features

• Ceramic alumina abrasive for fast, consistent stock removal on metal surfaces
• Coarse 36 grit rating suited to weld grinding, deburring, and scale removal
• Resinoid bond construction provides durability under continuous load
• 13,580 maximum RPM rating compatible with standard 4.5-inch angle grinders
• 5/8-11 threaded connector for direct mount to standard angle grinder spindles
• Type 27 profile with rigid, non-flexible construction for controlled flat grinding

Compatibility

Designed for use with 4.5-inch angle grinders equipped with a 5/8-11 threaded spindle. Also listed as compatible with Type 42 wheel geometry where supported by the tool guard configuration.

Installation Notes

Installation and wheel changes must be performed by qualified personnel following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always power down and disconnect the grinder from its power source before mounting or removing the wheel. Inspect the wheel for cracks or chips before each use and never exceed the rated maximum RPM. Use the appropriate wheel guard supplied with the grinder at all times during operation.