Tru-maxx 66253255476 Surface Grinding Wheel 100 Grit

Product Description

The TRU-MAXX 66253255476 is a Type 1 surface grinding wheel designed for precision material removal on surface grinders. It measures 7 inches in diameter, 1/4 inch thick, with a 1-1/4 inch arbor hole. The wheel is made from aluminum oxide abrasive with a vitrified bond, rated at H hardness and 100 grit for fine-grade stock removal. The vitrified bond provides rigidity and consistent cut geometry across the wheel face. Rated to 3600 RPM, it is suited for controlled surface grinding operations where finish consistency and wheel longevity matter. Machinists and tool room operators are the primary installers and users of this wheel type.

This wheel is intended for use on horizontal-spindle surface grinders in tool rooms, machine shops, and production grinding environments. It is best applied to ferrous metals and general-purpose surface grinding tasks where a fine finish is required. The 100 grit, H hardness, and semi-friable grain structure make it appropriate for medium-hardness workpieces where free cutting action and controlled material removal are priorities. The non-porous, vitrified-bond construction supports wet or dry grinding depending on machine setup.

Key Features

• Type 1 flat wheel profile for horizontal-spindle surface grinders
• 100 grit aluminum oxide abrasive for fine-grade stock removal
• H hardness rating with semi-friable grain structure for free cutting action
• Vitrified bond for rigidity and consistent wheel geometry
• 3600 RPM maximum speed rating
• Non-porous construction with no recess for straightforward mounting

Compatibility

Designed as a standard Type 1 replacement grinding wheel for horizontal-spindle surface grinders accepting a 7 inch diameter, 1/4 inch thick wheel with a 1-1/4 inch arbor hole.

Installation Notes

Grinding wheel installation and dressing should be performed by a qualified machinist or tool room technician familiar with ANSI B11.9 surface grinder safety standards. Always power down and lock out the machine before mounting or removing the wheel. Inspect the wheel for cracks or chips before installation and perform a ring test per ANSI B7.1 guidelines. Never exceed the 3600 RPM maximum speed rating marked on this wheel.