Norton 66252941324 Surface Grinding Wheel 46 Grit 7 in

Product Description

The NORTON 66252941324 is a Type 1 surface grinding wheel engineered for precision stock removal on soft carbon steels, tool steels, and super alloys. It measures 7 inches in diameter, 0.5 inches thick, with a 1.25-inch arbor hole. The wheel is constructed from white aluminum oxide abrasive bonded with a vitrified bond, resulting in a coarse, 46-grit cutting action rated at H hardness. The semi-friable grain structure promotes consistent cutting by exposing fresh abrasive as the wheel wears. This wheel is installed and used by machinists and grinding technicians performing flat surface, form, or precision grinding operations.

This wheel is suited for flat surface grinding applications in job shops, tool rooms, and production environments. It is compatible with surface grinders, cylindrical grinders, and CNC cutting tool machines. The coarse 46-grit rating makes it well suited for aggressive material removal passes before finishing, particularly on soft carbon steels, tool steels, and super alloys. The porous structure aids coolant penetration and chip clearance during wet or dry grinding cycles.

Key Features

• Type 1 flat wheel geometry — no recess, no taper
• 46 grit coarse grade aluminum oxide for aggressive stock removal
• H hardness (soft hardness rating) reduces loading on softer workpiece materials
• Vitrified bond provides rigidity and dimensional stability under grinding loads
• Semi-friable grain continuously exposes sharp cutting edges
• Porous wheel structure supports coolant flow and chip evacuation

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding soft carbon steels, tool steels, and super alloys. Fits spindles with a 1.25-inch arbor bore.

Installation Notes

Grinding wheel installation must be performed by a qualified machinist or grinding technician following ANSI B7.1 safety standards. Always perform a ring test before mounting to check for cracks. Power down and lock out the grinder before mounting or removing the wheel. Never exceed the rated maximum speed of 3600 RPM; verify the machine spindle speed before operation.