Tru-maxx 66253269573 Type 11 Grinding Wheel 4in 46 Grit

Product Description

The TRU-MAXX 66253269573 is a Type 11 aluminum oxide grinding wheel designed for surface grinding and tool conditioning applications. This wheel measures 4 inches in diameter with a 1.5-inch overall thickness and a 0.25-inch face width. The vitrified bond construction and 46-grit coarse cutting surface make it well suited for aggressive stock removal on ferrous metals and general shop grinding tasks. At a maximum rated speed of 5,730 RPM, it is appropriate for bench grinder and pedestal grinder setups. The K hardness code indicates a medium-grade wheel that releases abrasive grains at a controlled rate, supporting consistent cut action. Machinists, tool-and-die technicians, and maintenance tradespeople are the typical end users.

This wheel is used in industrial maintenance shops, tool rooms, and fabrication environments where controlled material removal is required on metal workpieces. The Type 11 flared-cup profile allows access to inside diameters, shoulders, and recessed surfaces that flat wheels cannot reach. It is a standard fit for bench and pedestal grinders equipped with a 1.25-inch arbor hole. Applications include sharpening tooling, deburring castings, and reconditioning worn tool edges in both residential shop and light commercial settings.

Key Features

• Type 11 flared-cup profile for grinding recessed surfaces and inside diameters
• Aluminum oxide abrasive material suited for ferrous metals and general-purpose grinding
• Vitrified bond for consistent abrasive grain exposure and controlled wear
• 46 grit coarse cutting surface for aggressive stock removal
• Maximum rated speed of 5,730 RPM for standard bench and pedestal grinder use
• Friable grain structure allows self-dressing action during use

Compatibility

Designed as a direct-fit replacement for Type 11 grinding wheels on bench and pedestal grinders with a 1.25-inch arbor hole and a maximum spindle speed at or below 5,730 RPM.

Installation Notes

Installation and wheel changes must be performed by a qualified technician following ANSI B7.1 safe-use standards for abrasive wheels. Disconnect and lock out power to the grinder before mounting or removing any wheel. Inspect the wheel for cracks or chips before mounting and perform a ring test by tapping the wheel lightly with a non-metallic object to confirm it produces a clear tone. Never exceed the maximum RPM rating stamped on the wheel.