Norton 66252843245 Type 27 Grinding Wheel 9in 30 Grit

Product Description

The NORTON 66252843245 is a Type 27 depressed center grinding wheel designed for aggressive material removal on angle grinders. Built with a zirconia alumina abrasive and a coarse 30 grit rating, this wheel cuts fast through steel, stainless, and other hard metals. The resinoid bond holds the abrasive grain firmly under load, and the wheel is rated to a maximum of 6,000 RPM. At 9 inches in diameter and 1/8 inch thick, it is sized for heavy-duty stationary and portable grinding work. The arbor hole measures 7/8 inch, fitting standard angle grinder spindles. This wheel weighs approximately 0.85 pounds and ships as a single unit.

This wheel is suited for metal fabrication, weld grinding, and surface preparation in industrial, commercial, and construction environments. Licensed tradespeople including ironworkers, pipefitters, welders, and millwrights use this wheel for stock removal and weld blending. Its coarse 30 grit and zirconia alumina construction make it well matched to high-contact-pressure applications where wheel life and cut rate both matter.

Key Features

• Zirconia alumina abrasive for fast cutting and extended wheel life on hard metals
• Coarse 30 grit for aggressive stock removal and weld grinding
• Type 27 depressed center profile provides clearance for flat and flush grinding
• Resinoid bond with hardness code U for durability under sustained load
• 6,000 RPM maximum speed rating for use on standard angle grinders
• 7/8 inch arbor hole fits common angle grinder spindle sizes

Compatibility

Designed for use with angle grinders accepting a 9 inch diameter Type 27 depressed center wheel with a 7/8 inch arbor connection.

Installation Notes

Mounting and operation of grinding wheels should be performed by qualified personnel following ANSI B7.1 safety standards and the grinder manufacturer guidelines. Always inspect the wheel for cracks or damage before mounting and never exceed the rated maximum RPM. Ensure the grinder is fully powered down and disconnected from its power source before changing wheels. Use the correct flange and arbor nut torqued per the tool manufacturer specification, and always wear appropriate PPE including a face shield.