Tru-maxx 66253255570 Surface Grinding Wheel 46 Grit

Product Description

The TRU-MAXX 66253255570 is a Type 1 surface grinding wheel designed for precision stock removal on ferrous metals and tool steel. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent cut rates and long service life under standard surface grinding conditions. It measures 6 inches in diameter, 1/2 inch thick, and carries a 1-1/4 inch arbor hole. The 46 grit, K hardness rating positions it as a coarse-grade option suited for operators who need aggressive material removal without sacrificing wheel integrity. Maximum rated speed is 5,410 RPM. The semi-friable grain structure and medium hardness allow the wheel to self-dress effectively during use.

This wheel is used in surface grinding applications across machine shops, tool rooms, and maintenance facilities. It is a standard fit for reciprocating surface grinders and compatible bench or pedestal setups that accept a 1-1/4 inch bore. Typical applications include flattening hardened steel surfaces, sharpening tooling, and cleaning up weld areas on ferrous workpieces. It is installed and operated by machinists and grinding technicians working in both production and jobsite environments.

Key Features

• Type 1 straight wheel profile for flat surface grinding operations
• Aluminum oxide abrasive with vitrified bond for consistent cut and wheel life
• 46 grit, K hardness coarse grade for aggressive stock removal
• Semi-friable grain structure supports effective self-dressing during use
• Non-porous construction with grain structure rating of 6
• Maximum operating speed of 5,410 RPM

Compatibility

Designed as a standard replacement or stock grinding wheel for surface grinders accepting a 6 inch diameter, 1/2 inch thick, Type 1 wheel with a 1-1/4 inch arbor bore.

Installation Notes

Grinding wheels must be installed by a qualified machinist or grinding technician. Before mounting, inspect the wheel for cracks or chips using the ring test; do not mount a damaged wheel. Ensure the grinder is fully de-energized and locked out before changing wheels. Never exceed the 5,410 RPM maximum rated speed marked for this wheel, and always use appropriate guarding and personal protective equipment during operation.