Tru-maxx 66253292302 Surface Grinding Wheel 46 Grit

Product Description

The TRU-MAXX 66253292302 is a Type 1 surface grinding wheel designed for precision stock removal on surface grinders. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent cut rates and maintains form throughout its service life. It measures 7 inches in diameter, 1/2 inch thick, with a 1-1/4 inch arbor hole. The 46-grit coarse grade and H hardness rating make it well suited for aggressive material removal on ferrous metals. Rated to 3600 RPM, it carries a non-porous, semi-friable grain structure at grade 6 spacing, which promotes free cutting action and reduces heat buildup at the workpiece surface.

This wheel is intended for use on horizontal spindle surface grinders in toolroom, maintenance, and production grinding applications. The aluminum oxide abrasive is a standard choice for carbon steel, tool steel, and similar ferrous workpieces where controlled stock removal is required. The vitrified bond provides rigidity and good form-holding, making this wheel appropriate for flat surface finishing work performed by machinists and tool-and-die professionals in shop environments.

Key Features

• Type 1 straight wheel profile for horizontal spindle surface grinding
• Aluminum oxide abrasive with semi-friable grain for free-cutting action
• Vitrified bond construction maintains wheel form and supports dressing
• 46-grit coarse grade for efficient stock removal on ferrous metals
• H hardness (soft) rating reduces glazing on harder workpiece materials
• Non-porous grain structure at grade 6 spacing for consistent wheel performance

Compatibility

Designed as an OEM-style replacement or standard fitment for horizontal spindle surface grinders accepting a 7-inch diameter, 1-1/4 inch arbor hole Type 1 grinding wheel.

Installation Notes

Grinding wheel installation and dressing should be performed by a qualified machinist or tool-and-die professional following ANSI B11.9 and applicable shop safety standards. Always ring-test the wheel for cracks before mounting and ensure the spindle speed does not exceed the 3600 RPM maximum rating stamped on the wheel. Use proper flanges and blotters; never exceed flange-to-wheel diameter ratio limits specified by the wheel manufacturer. Power down and lock out the machine fully before mounting or removing the wheel.