Norton 66252912625 Type 27 Depressed Center Wheel 7 in

Product Description

The NORTON 66252912625 is a Type 27 depressed center grinding wheel designed for use with angle grinders in metal fabrication, weld grinding, and surface conditioning applications. Built with a ceramic alumina abrasive and a resinoid bond, this wheel delivers consistent cut rates and extended service life compared to standard aluminum oxide wheels. The 7-inch diameter and 1/8-inch thickness make it well suited for aggressive stock removal on ferrous metals. A 5/8-11 threaded hub provides a secure, standardized connection to compatible angle grinder spindles. This wheel is rated to a maximum of 8,600 RPM and weighs 0.52 pounds.

This depressed center wheel is intended for professional use in industrial, commercial, and field service environments. Typical applications include grinding welds flush, removing mill scale, and shaping steel, stainless steel, and other hard metals. The Type 27 profile — with its recessed center — provides clearance for the grinder body during flat and surface grinding passes, improving visibility and control. Fabricators, ironworkers, pipefitters, and maintenance technicians commonly specify this wheel for heavy-duty grinding tasks where a standard flat wheel would lack the necessary aggression or wheel life.

Key Features

• Ceramic alumina abrasive for high cut rate and extended wheel life on hard metals
• Type 27 depressed center profile improves grinder body clearance during surface grinding
• 1/8-inch thickness optimized for aggressive stock removal and weld grinding
• 5/8-11 threaded connector fits standard angle grinder spindles
• Resinoid bond provides durability and resistance to shock loading
• 8,600 RPM maximum speed rating

Compatibility

Designed for use with angle grinders equipped with a 5/8-11 threaded spindle. Verify that the grinder's no-load RPM does not exceed the 8,600 RPM maximum rating of this wheel before installation.

Installation Notes

Installation must be performed by a qualified operator following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Before mounting, inspect the wheel for cracks or damage and confirm the grinder's rated speed does not exceed 8,600 RPM. Always use the correct flange and guard assembly for a Type 27 wheel, and never remove or bypass the grinder guard. Allow the wheel to run at operating speed for at least one minute in a protected area before bringing it into contact with the workpiece.