Norton 66252835506 Surface Grinding Wheel 150 Grit 6 in

Product Description

The NORTON 66252835506 is a Type 1 surface grinding wheel engineered for precision flat-surface stock removal on soft carbon steels, tool steels, and super alloys. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent cutting action and thermal stability during extended grinding operations. At 6 inches in diameter and 1/8 inch thick with a 1-1/4 inch arbor hole, it mounts directly to standard surface grinder spindles. The 150-grit, very fine grade produces a smooth finish while the L hardness code and semi-friable grain structure allow the wheel to shed dull abrasive and expose fresh cutting edges without loading. Rated at 4140 RPM maximum, the wheel suits high-precision applications where surface finish quality is the primary goal.

This wheel is suited for use in tool rooms, machine shops, and maintenance environments handling ferrous metals. Typical applications include sharpening cutting tools, reconditioning machine surfaces, and finish-grinding hardened tool steel components. It is compatible with surface grinders, cylindrical grinders, and CNC cutting tool machines. The non-porous, vitrified bond construction holds its form well under moderate to heavy coolant flow, making it a practical choice for both wet and dry surface grinding setups where a fine finish is required.

Key Features

• Aluminum oxide abrasive delivers reliable performance on soft carbon steels, tool steels, and super alloys
• Vitrified bond provides rigidity and thermal stability for consistent material removal
• 150-grit very fine grade produces smooth surface finishes with minimal post-grind work
• L hardness code with semi-friable grain allows self-dressing action to maintain sharpness
• Type 1 straight-wheel profile fits standard surface grinder and cylindrical grinder spindles
• Non-porous construction is compatible with coolant-assisted grinding operations

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 accepting a 1-1/4 inch arbor hole.

Installation Notes

Grinding wheel installation and dressing should be performed by a qualified machinist or grinding technician. Before mounting, inspect the wheel for cracks using a ring test and confirm the machine spindle speed does not exceed the 4140 RPM maximum rating. Power down and lock out the grinder before changing wheels, and use the correct flanges and blotters as specified by ANSI B11.9 or the machine manufacturer. Always dress the wheel after mounting to ensure it runs true before beginning a grinding pass.