Norton 66253246845 Surface Grinding Wheel 8in 46 Grit

Product Description

The NORTON 66253246845 is a Type 1 vitrified surface grinding wheel engineered for precision stock removal on ferrous metals. It measures 8 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole. The wheel uses an aluminum oxide abrasive bonded in a vitrified matrix, producing a coarse 46-grit cut at a J-hardness rating. Rated to 3600 RPM, it is sized for surface grinders, cylindrical grinders, and CNC cutting tool machines. The porous structure promotes chip clearance and helps prevent loading when working on soft carbon steels and tool steels.

This wheel is part of the Gemini Precision Vitrified Grinding Wheels series and is well suited to production and maintenance grinding operations in machine shops, tool rooms, and industrial facilities. Typical applications include flat surface finishing, tool reconditioning, and precision material removal on soft carbon steels and tool steels. The coarse 46-grit specification makes it appropriate for aggressive stock removal rather than fine finishing passes.

Key Features

• Aluminum oxide abrasive with vitrified bond for consistent, controlled cut
• Coarse 46-grit, J-hardness (medium) rating for aggressive stock removal on soft metals
• Porous wheel structure promotes chip clearance and reduces loading
• Rated to 3600 RPM for safe operation on compatible grinding equipment
• Type 1 flat wheel profile with no recess — straightforward mounting and dressing
• Compatible with surface grinders, cylindrical grinders, and CNC cutting tool machines

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Material application includes soft carbon steels and tool steels. Specifications conform to GEMINI 46-J designation within the Gemini Precision Vitrified Grinding Wheels series.

Installation Notes

Grinding wheel mounting and replacement should be performed by a qualified operator or maintenance technician following ANSI B11.9 and applicable shop safety standards. Always power down and lock out the grinder before changing wheels. Inspect the wheel for cracks or chips before mounting — never install a damaged wheel. Verify the machine spindle speed does not exceed the 3600 RPM rating marked on the wheel before operation.