Tru-maxx 66253255779 Surface Grinding Wheel 46 Grit

Product Description

The TRU-MAXX 66253255779 is a Type 1 surface grinding wheel designed for precision stock removal and surface finishing on ferrous and non-ferrous materials. Built with an aluminum oxide abrasive grain and a vitrified bond, it delivers consistent cutting action with good form-holding characteristics. The wheel carries a K hardness rating, placing it in the medium hardness range, and uses a semi-friable grain structure that supports controlled breakdown for cooler cutting. Rated to a maximum of 5410 RPM, it suits most standard bench and pedestal grinder setups. At 1 pound, it is lightweight enough for frequent wheel changes without adding fatigue to the task.

This wheel is suited for tool room, maintenance, and general metalworking applications in both shop and field environments. It is a common choice for machinists, tool-and-die makers, and maintenance technicians who need a reliable surface grinding wheel for dressing tooling, sharpening cutting edges, or finishing flat surfaces. The 6 inch diameter and 1-1/4 inch arbor hole fit a wide range of standard bench grinders and surface grinding machines used in light to medium industrial settings.

Key Features

• Type 1 straight wheel profile for flat surface grinding and tool sharpening
• Aluminum oxide abrasive with semi-friable grain for controlled breakdown and cooler cuts
• Vitrified bond provides rigid form-holding and consistent grain exposure
• 46 grit coarse grade removes material quickly while leaving a workable surface finish
• K hardness (medium) balances wheel life against cutting efficiency
• Maximum operating speed of 5410 RPM compatible with standard bench grinders
• Non-porous, no-recess construction with white wheel color for easy inspection

Compatibility

Designed as an OEM-style replacement or standard consumable for bench grinders and surface grinding machines accepting a 6 inch diameter, 1/2 inch thick, Type 1 wheel with a 1-1/4 inch arbor hole.

Installation Notes

Surface grinding wheels must be installed by a qualified machinist or maintenance technician following ANSI B7.1 safety requirements for abrasive wheel machinery. Always power down and de-energize the grinder before mounting or removing a wheel. Perform a ring test by tapping the unmounted wheel lightly with a non-metallic mallet before installation — a clear tone indicates an intact wheel; a dull thud may indicate a crack and the wheel should not be used. Never exceed the maximum operating speed of 5410 RPM marked on the wheel.