Norton 66253262392 Surface Grinding Wheel 12 in 46 Grit

Product Description

The NORTON 66253262392 is a Type 1 vitrified surface grinding wheel engineered for demanding material removal on ferrous and non-ferrous workpieces. Built with aluminum oxide abrasive and a vitrified bond, this wheel operates at a maximum of 2070 RPM and delivers coarse stock removal across a range of materials including stainless steel, carbon steels, tool steels, aluminum, and cast iron. At 12 inches in diameter with a 3/4-inch face width and a 3-inch arbor hole, it fits standard surface and cylindrical grinder spindles. The 46-grit, G-hardness rating makes it well-suited for aggressive cuts where surface finish is secondary to material removal rate. Specification designation is 32A46-GVBEP.

This wheel is a standard choice for toolroom and production grinding environments. It is used on surface grinders, cylindrical grinders, and CNC cutting tool machines. Typical applications include squaring and flattening hardened tool steel components, truing cast iron fixtures, and grinding 400-series stainless steel parts. The porous, vitrified structure provides chip clearance and coolant flow during wet or dry grinding operations, helping to reduce heat buildup in the workpiece.

Key Features

• Aluminum oxide abrasive with vitrified bond for consistent stock removal and wheel integrity
• 46 grit, coarse grade for high material removal rate on hard and soft metals
• G hardness code — soft-to-medium wheel retention suitable for harder workpiece materials
• Porous wheel structure promotes coolant penetration and reduces thermal loading
• 3-inch arbor hole fits standard surface and cylindrical grinder spindles
• Specification series 32A Type 1 — no recess, straight-sided profile

Compatibility

Rated for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Material applications include 400 Series Stainless, Hard Carbon Steels, Soft Carbon Steels, Tool Steels, Aluminum, Cast Iron, Ductile Iron, and Gray Iron.

Installation Notes

Grinding wheel installation and dressing should be performed by a qualified machinist or tool and die technician. Before mounting, power down the grinder completely and verify the spindle arbor size matches the 3-inch bore. Never exceed the rated maximum speed of 2070 RPM. Inspect the wheel for cracks or chips before each use by performing a ring test, and always use the appropriate flange hardware and blotter paper as required by ANSI B7.1 safety standards.