Norton 66243530218 Type 6 Grinding Wheel 4 in 60 Grit

Product Description

The NORTON 66243530218 is a Type 6 straight-cup grinding wheel designed for tool grinding and surface grinding applications. Built with aluminum oxide abrasive and a vitrified bond, it delivers consistent stock removal on ferrous metals and tool steel. The wheel measures 4 inches in diameter with a 1.5-inch overall thickness and a 0.5-inch face width. It is rated to a maximum of 5,730 RPM and carries a K hardness code, placing it in the medium-hard range for controlled cut and wheel life. Licensed HVAC technicians, machinists, and tool-and-die professionals reach for this wheel when resharpening HSS tooling or dressing bench grinder work.

This wheel is suited for bench grinder and pedestal grinder setups in job shops, maintenance departments, and tool rooms. The 60 grit aluminum oxide construction removes material efficiently while leaving a workable surface finish for tool reconditioning. The 0.5-inch hole size accommodates standard spindle arbors common on bench grinders used in light industrial and trade shop environments. Its non-porous vitrified bond resists loading on steel and cast iron, making it a reliable choice for repeated tool sharpening cycles.

Key Features

• Type 6 straight-cup profile for bench and pedestal grinder use
• Aluminum oxide abrasive with vitrified bond for consistent cut and durability
• 60 grit medium grade balances stock removal speed with surface finish
• K hardness code provides firm wheel structure for controlled grinding pressure
• Maximum RPM rating of 5,730 for safe operation on standard bench grinders
• Non-porous construction resists loading on ferrous metals and tool steel

Compatibility

Designed as a Type 6 straight-cup replacement wheel for bench grinders and pedestal grinders with a 0.5-inch spindle arbor and a maximum operating speed at or above 5,730 RPM.

Installation Notes

Wheel mounting should be performed by a qualified operator following ANSI B7.1 safety code guidelines for abrasive wheel installation. Always power down and de-energize the grinder before removing or mounting a wheel. Inspect the wheel for cracks or chips before mounting, and never exceed the maximum RPM stamped on the wheel. Dress the wheel face after mounting to ensure concentricity before returning the grinder to service.