Tru-maxx 66253255646 Surface Grinding Wheel 7in 100 Grit

Product Description

The TRU-MAXX 66253255646 is a Type 1 surface grinding wheel engineered for precision flat grinding on ferrous metals and hard materials. It is constructed with aluminum oxide abrasive grain and a vitrified bond, producing a rigid wheel structure that holds its form throughout the cut. At 100 grit with a J hardness rating and a grain structure of 6, this wheel delivers fine material removal with consistent surface finish. The semi-friable abrasive sheds dull grains to expose fresh cutting edges, supporting cooler grinding action. It is rated to a maximum of 3600 RPM and is intended for use on surface grinding machines by skilled machinists and toolroom professionals.

This wheel is suited for surface grinding applications in toolrooms, machine shops, and maintenance environments. The Type 1 straight-wheel profile mounts directly to surface grinders with a standard 1-1/4 inch arbor bore. Its fine 100-grit specification makes it appropriate for finishing passes and close-tolerance work on steel, cast iron, and similar ferrous workpieces where surface quality and dimensional control are priorities.

Key Features

• Type 1 straight profile with no recess for direct mounting on surface grinders
• Aluminum oxide abrasive with vitrified bond for rigid, consistent cutting action
• Semi-friable grain continuously exposes fresh abrasive during grinding
• 100 grit fine grade with J medium hardness for finish grinding applications
• Pink wheel color indicates aluminum oxide composition suited to ferrous metals
• Rated to 3600 RPM maximum for safe operation on compatible machines

Compatibility

Designed as a standard Type 1 replacement surface grinding wheel for surface grinders equipped with a 1-1/4 inch arbor bore and operating at or below 3600 RPM.

Installation Notes

Surface grinding wheels must be installed and dressed by a qualified machinist following applicable ANSI B11 and OSHA abrasive wheel safety standards. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before each use and perform a ring test per ANSI B7.1 guidelines. Never exceed the maximum RPM rating stamped on the wheel.