Norton 66252843322 Cut-off Wheel 4.5x1/8x7/8 Type 27/42

Product Description

The NORTON 66252843322 is a Type 27/42 cut-off wheel engineered for demanding cutting applications in the trades. It combines ceramic alumina and zirconia alumina abrasives in a reinforced construction to deliver significantly higher performance than standard high-performance zirconia or ceramic wheels. At 4.5 inches in diameter, 1/8 inch thick, and with a 7/8 inch arbor hole, this extra coarse grit wheel is sized for standard 4.5-inch angle grinders common on job sites. The ultra-thin depressed center profile reduces material loss and promotes faster cutting speed through tough materials. Reinforced construction maintains wheel integrity under load and supports straight, accurate cuts.

This cut-off wheel is designed specifically for cut-off applications on 400 series stainless steel as well as cast iron and gray iron. It suits fabrication, mechanical, and maintenance work in industrial, commercial, and heavy-duty trade environments. The Type 27/42 geometry is compatible with angle grinders equipped with a 7/8 inch arbor, making it a straightforward fit for wheels already on most job sites. Plumbers, pipefitters, ironworkers, and general contractors working with ferrous metals and pipe will find this wheel suited to their cutting tasks.

Key Features

• Ceramic alumina and zirconia alumina blend delivers two to three times the performance life of standard high-performance wheels
• Reinforced construction promotes straight cuts on difficult-to-cut materials
• Ultra-thin depressed center minimizes material loss and improves cutting speed
• Extra coarse grit for aggressive stock removal on ferrous metals
• Type 27/42 profile fits standard 4.5-inch angle grinders with 7/8 inch arbor
• Rated for 400 series stainless steel, cast iron, and gray iron

Compatibility

Designed for use on 400 series stainless steel, cast iron, and gray iron. Fits angle grinders accepting a 4.5 inch diameter, 7/8 inch arbor cut-off wheel in a Type 27/42 configuration.

Installation Notes

This wheel is installed and operated by qualified tradespeople familiar with angle grinder safety practices. Before mounting, confirm the grinder's maximum RPM rating meets or exceeds the wheel's rated speed. Inspect the wheel for cracks or damage before each use and never mount a damaged wheel. Always use the appropriate guard, wear face and eye protection, and follow ANSI B7.1 safe-use requirements for abrasive wheels.

Technical Specifications

• Wheel Diameter: 4.5 inches
• Wheel Thickness: 1/8 inch
• Arbor Hole Size: 7/8 inch
• Abrasive Material: Ceramic Alumina and Zirconia Alumina
• Grit Grade: Extra Coarse
• Wheel Type: Type 27/42
• Application: Cut-Off
• Compatible Materials: 400 Series Stainless Steel, Cast Iron, Gray Iron

Standard Information

• Brand: NORTON
• Manufacturer Part Number: 66252843322