Norton 66252839423 Type 27 Grinding Wheel 4.5in 24 Grit

Product Description

The NORTON 66252839423 is a Type 27 depressed center grinding wheel designed for aggressive material removal on metal and fabrication applications. Built with a ceramic alumina abrasive and a resinoid bond, this wheel delivers consistent cut rate and long service life under heavy-duty grinding conditions. At 4.5 inches in diameter with a 1/8-inch thickness and a 5/8-11 threaded hub, it mounts directly to standard right-angle grinders. Rated at a maximum of 13,580 RPM, it is suited for hard use by welders, pipefitters, ironworkers, and metal fabricators who need reliable stock removal in the field or shop.

This wheel is intended for use in metal grinding applications where coarse, fast cutting is required. The 24-grit ceramic alumina construction excels at weld blending, surface preparation, and heavy burr removal on ferrous metals. Its depressed center profile keeps the hub clear of the workpiece, providing a controlled grinding angle and improved operator clearance in tight spaces. It is sold individually per package with a minimum order quantity of 10 units.

Key Features

• Type 27 depressed center profile for improved workpiece clearance and controlled grinding angle
• Ceramic alumina abrasive provides aggressive cut rate and extended wheel life
• 24-grit coarse grade for rapid stock removal and weld blending
• Resinoid bond holds abrasive securely under high-load grinding conditions
• 5/8-11 threaded connector for direct mount on standard angle grinders
• Rated to 13,580 RPM maximum for compatibility with common 4.5-inch grinders

Compatibility

Designed as an OEM-style replacement or direct-use grinding wheel for standard 4.5-inch right-angle grinders equipped with a 5/8-11 threaded spindle.

Installation Notes

Installation should be performed by a qualified operator following ANSI B7.1 safe use standards for abrasive wheels. Always verify the grinder spindle speed does not exceed the wheel maximum RPM of 13,580 before mounting. Inspect the wheel for cracks or damage before each use and never force or overtighten the mounting nut beyond hand-snug plus wrench-tight per grinder manufacturer guidance. Wear appropriate PPE including a face shield and gloves during mounting and operation.