Norton 66252941647 Type 12 Grinding Wheel 7 in 60 Grit

Product Description

The NORTON 66252941647 is a Type 12 vitrified aluminum oxide grinding wheel built for precision tool grinding operations. The wheel measures 7 inches in diameter with a 0.5 inch overall thickness and a 0.4375 inch face width, mounted on a 1.25 inch arbor hole. Rated at a maximum of 3,550 RPM, it carries a 60 grit, medium hardness (Grade K) abrasive spec — designated 32A60-KVBE. This wheel is installed and used by machinists, tool-and-die technicians, and grinding shop professionals working with ferrous and non-ferrous tooling materials.

Designed for use on bench or pedestal tool-and-cutter grinders, this wheel suits applications including resharpening milling cutters, reamers, taps, and similar cutting tools. The Type 12 profile — a dish-shaped wheel — allows clearance grinding and sharpening of multi-fluted cutting tools where a flat wheel face cannot reach the cutting geometry. It is appropriate for light to medium stock removal in precision grinding environments. The non-porous, vitrified bond provides consistent cutting action and resistance to loading during tool reconditioning work.

Key Features

• Type 12 dish profile for clearance and tool-geometry grinding
• Aluminum oxide abrasive — suitable for resharpening high-speed steel and general-purpose tooling
• Vitrified bond provides rigid, consistent abrasive retention
• 60 grit medium grade (Hardness Code K) for controlled stock removal with moderate finish
• 3,550 RPM maximum speed rating for standard bench and pedestal grinder use
• Non-porous structure minimizes loading on tool steel surfaces

Compatibility

Designed as an OEM-style replacement or aftermarket grinding wheel for bench and pedestal tool-and-cutter grinders accepting a 7 inch diameter, 1.25 inch arbor hole, Type 12 wheel.

Installation Notes

Grinding wheel mounting and dressing should be performed by a qualified machinist or grinding technician following ANSI B7.1 safe-use standards. Always power down and lock out the grinder before changing wheels. Inspect the wheel for cracks or chips using a ring test before mounting — do not use a damaged wheel. Ensure the spindle RPM rating of the grinder does not exceed the 3,550 RPM maximum speed marked on this wheel.