Norton 66252843593 Type 27 Grinding Wheel 4-1/2in 24 Grit

Product Description

The NORTON 66252843593 is a Type 27 depressed center grinding wheel designed for aggressive stock removal on metal workpieces. Built with aluminum oxide abrasive and a resinoid bond, it delivers consistent cutting action and durability under sustained load. The coarse 24-grit rating makes it well suited for weld grinding, deburring, and surface preparation where fast material removal matters more than finish quality. At 4-1/2 inches in diameter and 1/4 inch thick, it mounts on standard right-angle grinders via a 5/8-11 threaded connection and is rated to a maximum of 13,580 RPM.

This wheel is used in fabrication shops, construction sites, and industrial maintenance settings where angle grinders are the primary tool. Typical applications include grinding welds flush, removing slag and scale, shaping mild steel, and preparing surfaces for welding or coating. The depressed center (Type 27) profile keeps the mount point recessed, allowing flat or near-flat work surface contact without the hub contacting the material.

Key Features

• Aluminum oxide abrasive with coarse 24-grit rating for fast, aggressive stock removal
• Resinoid bond provides resilience and heat resistance during heavy grinding
• Type 27 depressed center design allows flush surface contact
• 5/8-11 threaded hole fits standard right-angle grinder spindles
• 13,580 maximum RPM rating for use with common 4-1/2 inch angle grinders
• Compact 0.215-pound wheel weight reduces operator fatigue during extended use

Compatibility

Designed for use on 4-1/2 inch right-angle grinders with a 5/8-11 threaded spindle. Verify that the grinder's rated no-load RPM does not exceed 13,580 RPM before mounting.

Installation Notes

Installation and use should follow ANSI B7.1 safety standards for abrasive wheels. Always confirm the grinder is unplugged or its power source is locked out before mounting or removing the wheel. Use the correct flange and guard specified by the grinder manufacturer, and never exceed the wheel's maximum RPM rating. Wear appropriate eye, face, and hand protection during grinding operations.