Norton 66252843261 Type 27 Grinding Wheel 9in 20 Grit

Product Description

The NORTON 66252843261 is a Type 27 depressed center grinding wheel designed for aggressive material removal on angle grinders. The 9-inch diameter wheel is constructed from a Zirconia Alumina and Silicon Carbide blend bond in a resinoid bond matrix, delivering a coarse 20 grit cut rated for up to 6,600 RPM. At 0.25 inches thick with a 5/8-11 threaded arbor hole, this wheel mounts directly to standard angle grinders and is suited for heavy grinding, weld blending, and surface prep on ferrous and non-ferrous metals. Licensed tradespeople and fabricators working in industrial, construction, and maintenance environments are the primary users.

This wheel is built for demanding grinding applications including weld removal, edge chamfering, and stock removal on steel, stainless, cast iron, and masonry substrates. The coarse 20 grit designation makes it appropriate for rapid material removal rather than finishing passes. The Type 27 depressed center profile allows the disc to be worked at a low angle to the workpiece, which reduces operator fatigue and improves control in flat or slightly contoured surfaces.

Key Features

• 9 inches diameter Type 27 depressed center profile for low-angle grinding
• Zirconia Alumina and Silicon Carbide blend abrasive for aggressive, multi-material stock removal
• Coarse 20 grit rating optimized for rapid weld blending and surface prep
• Resinoid bond with Hardness Code R for controlled wear and consistent cut rate
• 5/8-11 threaded connector mounts directly to standard angle grinder spindles
• 6,600 RPM maximum operating speed

Compatibility

Designed for use with angle grinders equipped with a 5/8-11 threaded spindle. The Type 27 configuration is a standard depressed center format compatible with most 9-inch angle grinders from major tool manufacturers.

Installation Notes

Installation and use should be performed by qualified personnel familiar with abrasive wheel safety. Always confirm the grinder spindle speed does not exceed the 6,600 RPM maximum rating stamped on the wheel before mounting. Inspect the wheel for cracks or damage before each use and never operate a damaged wheel. Use the appropriate guard and personal protective equipment including face shield, gloves, and hearing protection per applicable ANSI B7.1 safety codes.