Tru-maxx 66253255866 Surface Grinding Wheel 80 Grit

Product Description

The TRU-MAXX 66253255866 is a Type 1 surface grinding wheel designed for precision stock removal and surface finishing on ferrous metals. Built with aluminum oxide abrasive grain and a vitrified bond, this wheel delivers consistent cut rates and good wheel life under typical surface grinding conditions. It measures 7 inches in diameter and 1/4 inch thick, with a 1-1/4 inch arbor hole. The 80 grit, H hardness rating places it in the medium-fine cutting range, suitable for finishing passes where surface quality matters alongside material removal. Rated at 3600 RPM maximum, it is appropriate for bench and surface grinding machine use in production and maintenance environments.

This wheel is suited for surface grinding operations on steel, tool steel, and similar ferrous workpieces in both job shop and industrial maintenance settings. Its semi-friable grain structure supports self-sharpening action during contact, which helps maintain consistent cutting performance. The vitrified bond provides rigidity and porosity control, making it a reliable choice for flat surface work where dimensional accuracy is required. Licensed machinists, tool grinders, and maintenance professionals are the typical end users.

Key Features

• Type 1 straight wheel profile for use on surface grinders and compatible bench grinders
• Aluminum oxide abrasive with semi-friable grain for consistent self-sharpening action
• Vitrified bond construction for rigidity and stable performance
• 80 grit, H hardness (medium-fine) for finishing and light stock removal
• Non-porous, non-recessed face for flat, uniform contact
• 3600 RPM maximum rated speed

Compatibility

Designed for use on surface grinders and bench grinders with a 1-1/4 inch arbor and a spindle speed not exceeding 3600 RPM. Confirm machine speed rating before mounting.

Installation Notes

Grinding wheel mounting must be performed by qualified personnel following ANSI B11.9 and OSHA 1910.215 general industry standards. Always perform a ring test before mounting and confirm the machine RPM does not exceed the wheel maximum speed rating. Use flanges of equal diameter and proper blotters as required. Never exceed rated RPM, and dress the wheel with an appropriate dressing tool before the first cut.