Norton 66252836966 Type 12 Grinding Wheel 6 in 60 Grit

Product Description

The NORTON 66252836966 is a Type 12 vitrified aluminum oxide grinding wheel designed for precision tool grinding and sharpening operations. The wheel measures 6 inches in diameter with a 0.5 inch overall thickness and a 0.375 inch face width, mounted on a 1.25 inch arbor hole. It carries a 60-grit, J-hardness (medium) rating, making it well suited for moderate stock removal on tool steel and similar materials. Maximum operating speed is 4,140 RPM. Installation and use require a compatible bench or pedestal grinder. The vitrified bond provides consistent grain exposure and free-cutting action throughout the wheel life.

This wheel is a standard fit for bench grinders and pedestal grinders used in tool rooms, maintenance shops, and production environments. It is appropriate for resharpening cutting tools, deburring, and light surface grinding where a medium-grit aluminum oxide abrasive is the correct choice. The Type 12 form factor features a recessed face, which positions the grinding surface for specific tool-grinding fixtures and cup-wheel applications. Typical users include machinists, maintenance technicians, and tool-and-die professionals who require consistent, controlled material removal.

Key Features

• Type 12 cup wheel form with recessed face for tool-grinding fixture compatibility
• 60-grit aluminum oxide abrasive for medium stock removal on tool steel
• J hardness (medium) vitrified bond for consistent grain exposure and long wheel life
• 4,140 RPM maximum operating speed
• Non-porous construction for uniform grinding action
• Specification grade 32A60-JVBE for traceability and replacement ordering

Compatibility

Designed as an OEM-style replacement or direct-fit grinding wheel for bench grinders and pedestal grinders accepting a 6 inch diameter, 1.25 inch arbor hole, Type 12 cup wheel.

Installation Notes

Grinding wheel installation must be performed by a qualified operator following ANSI B7.1 safety requirements. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips using the ring test before installation, and never exceed the rated maximum RPM. Use proper flanges and a paper blotter on each side of the wheel as required by applicable safety standards.