Tru-maxx 66253269566 Surface Grinding Wheel 150 Grit

Product Description

The TRU-MAXX 66253269566 is a Type 1 surface grinding wheel designed for precision stock removal and finish grinding on ferrous metals and similar materials. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent cutting action across its full face. At 150 grit with a K hardness code and grain structure of 6, it falls in the very fine grade range, making it well suited for light material removal and surface finishing rather than aggressive stock reduction. Rated to 3600 RPM and weighing 1 pound, it is a standard straight wheel intended for bench grinders and surface grinders used in machine shops, tool rooms, and maintenance facilities.

This wheel fits surface grinders and bench grinders that accept an 8-inch diameter wheel with a 1-1/4 inch arbor hole. The 1/4 inch thickness and Type 1 straight profile make it compatible with standard surface grinding applications where a flat wheel face is required. The white aluminum oxide grain with semi-friable characteristics makes it a common choice for grinding high-speed steel, tool steel, and similarly hard materials where heat-sensitive workpieces require a free-cutting, cool-running abrasive. No recess is present on either face.

Key Features

• Aluminum oxide abrasive with vitrified bond for consistent, open cutting action
• 150 grit, K hardness, very fine grade — suited for finish grinding and light stock removal
• Semi-friable grain that self-sharpens to reduce heat buildup on sensitive workpieces
• Non-porous, grain structure 6 for uniform wheel density
• Type 1 straight profile with no recess for standard surface and bench grinder compatibility
• Maximum operating speed of 3600 RPM

Compatibility

Designed for use on surface grinders and bench grinders that accept an 8-inch diameter, Type 1 straight wheel with a 1-1/4 inch arbor hole and a maximum spindle speed of 3600 RPM or lower.

Installation Notes

Grinding wheel installation and dressing should be performed by a qualified machinist or maintenance technician following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before installation using the ring test, and never exceed the maximum RPM marked on the wheel. Use the correct flanges and blotter washers per the grinder manufacturer specifications.