Norton 66253043458 Surface Grinding Wheel 8in 80 Grit

Product Description

The NORTON 66253043458 is a Type 1 straight surface grinding wheel designed for precision stock removal on ferrous and non-ferrous metals. It measures 8 inches in diameter, 1/4 inch thick, with a 1-1/4 inch arbor hole. The abrasive is aluminum oxide bonded in a vitrified matrix, rated at a maximum of 3600 RPM. At 80 grit with a medium (K) hardness grade, this wheel delivers a balance of cut rate and surface finish suitable for toolroom and production grinding. It carries the Norton series designation 32A80-KVBE. Weighing approximately 1.05 pounds, it mounts easily on standard surface grinder spindles.

This wheel is suited for use on surface grinders, cylindrical grinders, and CNC cutting tool machines in both shop and production environments. Verified material applications include 400 Series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The vitrified bond offers consistent grain exposure and good wheel life across these materials. It is appropriate for professional machinists, tool and die makers, and maintenance technicians working in industrial and job shop settings.

Key Features

• Aluminum oxide abrasive for broad compatibility across ferrous and non-ferrous metals
• Vitrified bond provides consistent grain exposure and controlled wheel wear
• 80 grit medium grade balances material removal rate with surface finish quality
• Type 1 straight wheel with no recess, no taper — simple arbor mounting
• Porous structure promotes coolant flow and reduces heat buildup at the grind zone
• Rated to 3600 RPM maximum operating speed

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Verified material applications include 400 Series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron.

Installation Notes

Installation should be performed by a qualified machinist or grinding equipment operator following the machine manufacturer's mounting instructions. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before installation and perform a ring test per ANSI B7.1 standards. Never exceed the wheel's maximum rated RPM of 3600 as marked on the blotter or wheel face.