Norton 66253246908 Surface Grinding Wheel 12in 46 Grit

Product Description

The NORTON 66253246908 is a Type 1 vitrified aluminum oxide surface grinding wheel built for demanding material removal on ferrous and non-ferrous metals. Measuring 12 inches in diameter and 1 inch thick with a 5-inch arbor hole, this wheel runs at a maximum of 2,705 RPM and carries a 46-grit coarse grade with K hardness rating. The vitrified bond and aluminum oxide abrasive combine to deliver consistent, aggressive stock removal while maintaining wheel integrity under load. Licensed HVAC, machining, and tool-room professionals specify this wheel for production and maintenance grinding operations.

This wheel is designed for use on surface grinders, cylindrical grinders, and CNC cutting tool machines in both shop and production environments. Rated for a broad range of materials including 400 series stainless, hard and soft carbon steels, tool steels, aluminum, cast iron, ductile iron, and gray iron, it handles both roughing and general-purpose surface grinding tasks. The coarse grit makes it particularly effective when high stock removal rates are the priority over surface finish refinement.

Key Features

• 46-grit coarse aluminum oxide abrasive for aggressive material removal
• K hardness (medium) vitrified bond resists breakdown under consistent load
• 12-inch diameter x 1-inch thick Type 1 flat wheel with 5-inch arbor hole
• Rated to 2,705 RPM maximum operating speed
• Non-porous, non-tapered, no-recess construction for stable seating
• Compatible with multiple material types including stainless, carbon steels, and cast iron

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding 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-room technician following ANSI B7.1 safety standards. Always inspect the wheel for cracks or chips before mounting and perform a ring test. Power down and lock out the grinder before mounting or changing wheels. Never exceed the maximum RPM rating marked on the wheel.