Tru-maxx 66253269571 Type 11 Grinding Wheel 46 Grit

Product Description

The TRU-MAXX 66253269571 is a Type 11 vitrified aluminum oxide grinding wheel designed for tool grinding and surface conditioning applications. It measures 4 inches in diameter with a 1.5-inch overall thickness and a 0.25-inch face width. The wheel carries a 46 grit rating with a J hardness code, placing it in the medium-hardness range. A vitrified bond holds the abrasive grain, and the wheel is rated non-porous. Maximum operating speed is 5,730 RPM. Machinists, tool-and-die workers, and maintenance technicians are the primary installers of this type of wheel.

This wheel suits bench grinder and pedestal grinder setups used in tool rooms, maintenance shops, and light industrial environments. The Type 11 flaring-cup profile makes it appropriate for tool face grinding, sharpening high-speed steel tooling, and reconditioning cutting edges. The 1.25-inch hole size fits standard arbor configurations common on benchtop grinding machines. The aluminum oxide abrasive is well-suited for ferrous metals and general-purpose tool steel grinding.

Key Features

• Type 11 flaring-cup profile for tool face and edge grinding
• 46 grit aluminum oxide abrasive, coarse cutting action on ferrous metals
• Vitrified bond construction for consistent grain exposure
• J hardness code, medium-grade wheel for controlled material removal
• 5,730 maximum RPM rating for standard bench grinder compatibility
• Non-porous, friable grain structure supports cooler cutting

Compatibility

Designed as an OEM-style replacement or stock grinding wheel for bench grinders and pedestal grinders accepting a Type 11 flaring-cup wheel with a 1.25-inch arbor hole and a 4-inch diameter.

Installation Notes

Grinding wheel mounting and dressing should be performed by qualified personnel following ANSI B7.1 safety standards. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before installation and perform a ring test. Never exceed the maximum RPM marked on the wheel, and always use the appropriate guard for the wheel type.