Tru-maxx 66253269588 Type 11 Grinding Wheel 5 in 46 Grit

Product Description

The TRU-MAXX 66253269588 is a Type 11 flaring cup grinding wheel designed for tool grinding and surface conditioning applications. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent material removal on ferrous metals and tool steel. The wheel measures 5 inches in diameter with a 1-3/4 inch overall thickness and a 1/4 inch face width. It carries a hardness code of I and a 46 grit rating, placing it in the coarse-to-medium range for aggressive stock removal. Maximum operating speed is 4,585 RPM. The pink aluminum oxide construction and friable grain structure make it well suited for precision tool grinding where cool cutting is a priority.

This wheel is used in bench grinder and pedestal grinder setups common in machine shops, tool rooms, and maintenance departments. The Type 11 flaring cup profile is the standard choice for grinding tool faces, lathe bits, drill bits, and cutting edges on HSS and carbide-tipped tooling. The 1-1/4 inch hole size fits standard grinding arbors found on most bench and pedestal grinders in that size class. It is typically installed and dressed by machinists, tool-and-die technicians, and industrial maintenance professionals.

Key Features

• Type 11 flaring cup profile for tool face and cutting edge grinding
• Aluminum oxide abrasive with vitrified bond for consistent cutting action
• 46 grit, hardness code I — medium hardness grade for controlled stock removal
• Friable grain structure supports cooler cutting and reduced workpiece heat buildup
• 4,585 RPM maximum operating speed
• 1-1/4 inch hole size fits standard bench and pedestal grinder arbors

Compatibility

Designed as an OEM-style replacement or standard-service grinding wheel for bench and pedestal grinders accepting a Type 11 flaring cup wheel with a 5 inch diameter and 1-1/4 inch arbor hole.

Installation Notes

Grinding wheel installation and dressing should be performed by a qualified machinist or maintenance technician following ANSI B7.1 safety requirements. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before installation — never mount a damaged wheel. Confirm the grinder spindle speed does not exceed the 4,585 RPM rating marked on the wheel before operation.