Norton 66253246910 Surface Grinding Wheel 12in 60 Grit

Product Description

The NORTON 66253246910 is a Type 1 vitrified aluminum oxide surface grinding wheel rated for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. It measures 12 inches in diameter, 1 inch thick, with a 5-inch arbor hole, and is dressed with 60-grit aluminum oxide abrasive at a K hardness (medium grade). The vitrified bond provides a rigid, precise cutting action well suited to high-material-removal grinding operations. At 8.4 pounds and a maximum operating speed of 2,705 RPM, this wheel is built for production-level surface grinding work performed by machinists and tool-and-die professionals.

This wheel is designed for grinding 400 series stainless steel, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The 32A series aluminum oxide abrasive cuts efficiently across this wide range of ferrous and non-ferrous materials, making it a practical choice for job shops and production floor environments where multiple material types are encountered. Its non-porous, non-tapered, non-recessed Type 1 flat wheel profile suits straight surface and cylindrical grinding setups.

Key Features

• 60-grit aluminum oxide abrasive with K hardness (medium grade) for balanced stock removal and finish
• Vitrified bond construction for rigid, consistent performance on surface and cylindrical grinders
• Type 1 flat wheel profile with no recess and no taper — straightforward mounting and dressing
• Rated to 2,705 RPM maximum operating speed
• Compatible with a broad range of ferrous and non-ferrous materials including stainless, tool steels, cast iron, and aluminum
• 32A series specification (60K8V32A) for traceability and consistent reorder

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron.

Installation Notes

Mounting and dressing of grinding wheels should be performed by qualified machinists or grinding equipment operators following ANSI B11.9 and OSHA 29 CFR 1910.215 guidelines. Always inspect the wheel for cracks or chips before mounting and perform a ring test. Never exceed the marked maximum operating speed of 2,705 RPM. Ensure the machine spindle, flanges, and arbor are clean and properly sized for the 5-inch hole before securing the wheel.