Norton 66252843238 Type 27 9in Grinding Wheel 24 Grit

Product Description

The NORTON 66252843238 is a Type 27 depressed center grinding wheel designed for aggressive material removal on angle grinders. Built with a Zirconia Alumina and Silicon Carbide blend abrasive and a coarse 24 grit rating, this wheel cuts fast through tough base metals, welds, and castings. The resinoid bond holds the abrasive grain firmly under load, and the hardness code T designation indicates a hard bond suited for softer workpiece materials. At 9 inches in diameter and 1/8 inch thick, it covers a wide grinding path while maintaining a low profile for controlled stock removal. Rated to a maximum of 6,000 RPM, it is intended for use on large-diameter angle grinders by metal fabricators, ironworkers, and maintenance trades.

This wheel fits standard 7/8 inch arbor angle grinders commonly used in fabrication shops, structural steel work, pipeline work, and heavy maintenance applications. The Type 27 depressed center profile raises the disc off the guard, allowing flat and surface grinding at low angles. The 9 inch diameter makes it well suited for large weld seam grinding, surface conditioning, and material blending on flat or slightly curved workpieces. The black resinoid-bonded wheel operates without water or coolant in dry grinding applications.

Key Features

• Type 27 depressed center profile for low-angle surface and flat grinding
• Zirconia Alumina and Silicon Carbide blend abrasive for fast, aggressive cutting action
• Coarse 24 grit for high stock removal on metals, welds, and castings
• Resinoid bond with hardness code T for durability under sustained grinding pressure
• 7/8 inch arbor hole fits standard large angle grinder spindles
• 6,000 RPM maximum speed rating for large-diameter angle grinder use

Compatibility

Designed for use with angle grinders accepting a 9 inch, 7/8 inch arbor Type 27 depressed center wheel rated to 6,000 RPM or lower.

Installation Notes

Installation must be performed by a qualified operator following ANSI B7.1 safe use standards for abrasive wheels. Before mounting, confirm the grinder spindle speed does not exceed the 6,000 RPM wheel rating and that the arbor size matches the 7/8 inch hole. Disconnect and lock out power to the grinder before mounting or removing the wheel. Always use the appropriate guard and personal protective equipment when operating grinding wheels.