Norton 66252941632 Surface Grinding Wheel 7in 120 Grit

Product Description

The NORTON 66252941632 is a Type 1 surface grinding wheel built for precision material removal on a wide range of metals and hard materials. It measures 7 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole. The wheel uses a silicon carbide abrasive bonded with a vitrified bond, rated at 120 grit for fine-grade stock removal and surface finishing. The hardness code is I, placing it in the medium hardness range. Rated to a maximum of 3600 RPM, this wheel suits surface grinders and cylindrical grinding operations. Machinists, tool-and-die technicians, and grinding specialists are the primary users.

This wheel is suited for grinding 300 series stainless steel, titanium, aluminum, brass, bronze, copper, gray iron, masonry, and natural stone. Its silicon carbide construction makes it especially effective on non-ferrous metals and hard, brittle materials where aluminum oxide wheels would underperform. Compatible equipment includes surface grinders, cylindrical grinders, and CNC cutting tool machines. The non-porous, non-tapered, no-recess design simplifies mounting and reduces setup time across standard spindle configurations.

Key Features

• Silicon carbide abrasive for effective cutting on non-ferrous metals, stainless steel, and stone
• Vitrified bond for consistent wheel integrity and free-cutting action under load
• 120 grit fine grade for finish grinding and precision surface work
• Hardness code I medium hardness for balanced wear rate and workpiece contact
• Non-porous, no-recess, non-tapered Type 1 profile for straightforward spindle mounting
• 3600 RPM maximum rating suitable for standard surface and cylindrical grinder spindles

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for material applications including 300 series stainless steel, titanium, aluminum, brass, bronze, copper, gray iron, masonry, and natural stone. Series designation is 39C Type 1 with internal specification code 39C120-IVMT.

Installation Notes

Wheel installation should be performed by a qualified machinist or grinding technician following the machine manufacturer's mounting procedures. Power down and lock out the grinder before mounting or removing any wheel. Inspect the wheel for cracks or chips before installation using the ring test; never mount a damaged wheel. Ensure the machine spindle RPM rating meets or exceeds 3600 RPM and that all flanges and blotters are properly seated before operating.