Tru-maxx 66253255894 Surface Grinding Wheel 60 Grit

Product Description

The TRU-MAXX 66253255894 is a Type 1 straight surface grinding wheel designed for precision stock removal and surface finishing on ferrous metals. Built with aluminum oxide abrasive and a vitrified bond, it delivers consistent cutting action and good wheel life in typical surface grinding applications. The wheel measures 7 inches in diameter, 1/2 inch thick, and carries a 1-1/4 inch arbor hole. At 60 grit and H hardness, it sits in the medium-fine range for aggressive-yet-controlled material removal. Rated to 3600 RPM maximum, it is intended for use on reciprocating and rotary surface grinders operated by machinists and tool-and-die professionals.

This wheel is suited for surface grinding operations in machine shops, maintenance facilities, and tool rooms. The aluminum oxide grain and vitrified bond make it a reliable choice for grinding carbon steel, alloy steel, and similar ferrous workpieces. The non-porous, semi-friable grain structure with a grain structure rating of 6 supports consistent self-dressing behavior, helping maintain a sharp cutting face during extended runs. It is appropriate for both roughing passes and finish grinding where a 60-grit surface finish is acceptable.

Key Features

• Type 1 straight wheel profile with no recess for straightforward mounting on standard surface grinder spindles
• Aluminum oxide abrasive with semi-friable grain promotes controlled self-sharpening during use
• Vitrified bond provides rigidity and good form-holding for flat surface work
• H hardness (soft-to-medium range) reduces loading when grinding harder steel alloys
• 60 grit delivers moderate stock removal with a reasonably smooth finish
• White wheel color aids visual inspection of wheel condition between dresses

Compatibility

Designed as an OEM-style replacement or direct-fit grinding wheel for surface grinders accepting a 7-inch diameter, 1-1/4 inch arbor hole, 1/2 inch thick Type 1 wheel running at or below 3600 RPM.

Installation Notes

Surface grinding wheels must be installed and dressed by a qualified machinist or grinder operator following ANSI B7.1 safe use standards. Always inspect the wheel for cracks or chips using the ring test before mounting, and never exceed the maximum rated RPM of 3600. Power down and lock out the grinder before changing wheels, and use the correct flanges and blotters as specified by the machine manufacturer. Eye and face protection rated for grinding operations is required during use and dressing.