Tru-maxx 66253269803 Surface Grinding Wheel 80 Grit

Product Description

The TRU-MAXX 66253269803 is a Type 1 surface grinding wheel designed for bench and pedestal grinder applications. Made from aluminum oxide abrasive, it measures 7 inches in diameter and 1/4 inch thick, with a 1-1/4 inch arbor hole. The wheel carries an 80 grit rating and a K hardness code, placing it in the medium hardness range. It is rated for a maximum of 3600 RPM. Machinists, tool-and-die workers, and general metalworking tradespeople use this wheel for surface stock removal, edge dressing, and tool reconditioning on steel and ferrous materials.

This wheel is suited for use on standard bench grinders and pedestal grinders equipped with a 1-1/4 inch arbor. The Type 1 straight-wheel profile makes it appropriate for flat grinding and general-purpose off-hand grinding operations in job shops, maintenance facilities, and machine shops. The ruby color and non-porous structure are characteristic of aluminum oxide wheels optimized for ferrous metals. It is sold individually and is a direct drop-in for compatible machines requiring a 7-inch diameter Type 1 wheel.

Key Features

• Type 1 straight-wheel profile for bench and pedestal grinder use
• Aluminum oxide abrasive construction for ferrous metal grinding
• 80 grit medium-grade cut for stock removal and surface conditioning
• K hardness code provides medium bond retention during grinding
• Non-porous wheel structure resists loading on steel workpieces
• Rated to 3600 RPM maximum operating speed

Compatibility

Designed as a standard replacement or consumable for bench and pedestal grinders accepting a 7-inch diameter, Type 1 straight wheel with a 1-1/4 inch arbor hole.

Installation Notes

Grinding wheel installation and dressing should be performed by qualified personnel following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always inspect the wheel for cracks or chips before mounting and perform a ring test per manufacturer guidelines. Ensure the grinder is powered down and locked out before changing wheels, and confirm the machine spindle speed does not exceed the wheel maximum RPM rating. Use proper flanges and blotters as required; never exceed the 3600 RPM maximum speed rating.