Norton 66252942709 Surface Grinding Wheel 7in 60 Grit

Product Description

The NORTON 66252942709 is a Type 1 straight surface grinding wheel designed for stock removal and precision surface finishing on ferrous and non-ferrous metals. It measures 7 inches in diameter, 1 inch thick, with a 1-1/4 inch arbor hole. The wheel is constructed from aluminum oxide abrasive bonded with a vitrified bond and carries a K hardness code, placing it in the medium hardness range. It is rated for a maximum of 3,600 RPM. The 32A series designation indicates a white-style aluminum oxide grain formulation suited for demanding grinding applications in shop and production environments.

This wheel is intended for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. It is well suited for grinding 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The porous, vitrified structure promotes chip clearance and cool cutting, making it appropriate for both light finishing passes and heavier material removal on production toolroom equipment.

Key Features

• 60 grit, medium grade aluminum oxide abrasive for versatile stock removal on ferrous and non-ferrous materials
• Vitrified bond with porous structure for improved chip clearance and reduced heat buildup
• K hardness code — medium hardness retains grain effectively across a wide range of workpiece materials
• Type 1 straight wheel geometry with no recess, compatible with standard surface and cylindrical grinder spindles
• Rated to 3,600 RPM maximum operating speed
• Series 32A designation for consistent aluminum oxide grain structure and predictable dress behavior

Compatibility

Rated for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for material applications including 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 grinding machine operator or maintenance technician following the machine manufacturer's mounting instructions and applicable ANSI B11 safety standards. Always inspect the wheel for cracks or chips before mounting and perform a ring test per ANSI B7.1 guidelines. Power down and lock out the grinder before changing wheels. Never exceed the 3,600 RPM maximum speed rating marked on the wheel.