Norton 66253246889 Surface Grinding Wheel 12in 46 Grit

Product Description

The NORTON 66253246889 is a Type 1 vitrified aluminum oxide surface grinding wheel engineered for stock removal and surface finishing on a wide range of ferrous and non-ferrous metals. It measures 12 inches in diameter, 1 inch thick, with a 3-inch arbor hole, and carries a 46-grit coarse grade with an H hardness rating. The vitrified bond delivers consistent grain exposure and free-cutting action, making it well suited for high-material-removal applications where surface finish is secondary to cutting speed. Rated at a maximum of 2,070 RPM, this wheel is built for production grinding environments where repeatable results are required across extended runs. Installation and use require a licensed or trained machinist or tool-and-die professional.

This wheel is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. It is rated for grinding 400 series stainless steel, hard carbon steels, soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron. The coarse 46-grit construction makes it particularly effective for aggressive stock removal passes before finishing operations. The non-porous, non-tapered, no-recess Type 1 flat wheel profile suits standard surface grinder spindle configurations in both job shop and production machine shop environments.

Key Features

• 46-grit coarse aluminum oxide abrasive for aggressive stock removal
• Vitrified bond provides consistent grain exposure and wheel integrity at operating speeds
• H hardness (soft hardness rating) promotes self-dressing action on harder workpiece materials
• Non-porous, no-recess, non-tapered Type 1 flat wheel profile for standard spindle mounting
• Rated for multiple material applications including stainless, tool steels, aluminum, and cast irons
• Series designation 32A Type 1 with specification code 46H8V32A

Compatibility

Rated for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Compatible 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 following the grinding machine manufacturer's mounting instructions and applicable ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before mounting and perform a ring test per ANSI guidelines. Never exceed the wheel's maximum rated RPM of 2,070 under any operating condition.