Norton 66252940109 Surface Grinding Wheel 100 Grit 7in

Product Description

The NORTON 66252940109 is a Type 1 straight surface grinding wheel designed for precision material removal on a wide range of metals and hard surfaces. Built on a vitrified bond with silicon carbide abrasive, this wheel delivers consistent cutting action at a fine 100 grit rating. It measures 7 inches in diameter, 1/4 inch thick, and carries a 1-1/4 inch arbor hole. Rated to a maximum of 3600 RPM, it is suited for surface grinders and cylindrical grinders in professional shop environments. The hardness code I rating places it in the medium range, balancing wheel life against cut rate on difficult materials.

This wheel is rated for use on 300 Series stainless steel, titanium, aluminum, brass, bronze, copper, gray iron, masonry, and natural stone. It is intended for use on surface grinders, cylindrical grinders, and CNC cutting tool machines. The non-porous, non-tapered, non-recessed Type 1 profile makes it a straightforward drop-in for standard wheel mounts in those machine types. Machinists, tool and die shops, and fabrication pros working with nonferrous metals or hard masonry materials will find this wheel a dependable choice for finishing and stock removal passes.

Key Features

• Silicon carbide abrasive with vitrified bond for consistent cut and thermal stability
• 100 grit fine grade suitable for finish grinding and light stock removal
• Type 1 straight wheel profile with no recess and no taper for standard machine compatibility
• Medium hardness (Code I) balances wheel life and cutting efficiency
• Rated to 3600 RPM maximum operating speed
• Green wheel color consistent with silicon carbide identification standards

Compatibility

Designed for use with surface grinders, cylindrical grinders, and CNC cutting tool machines requiring a Type 1 straight wheel with a 1-1/4 inch arbor hole. Rated for material applications including 300 Series stainless, titanium, aluminum, brass, bronze, copper, gray iron, masonry, and natural stone.

Installation Notes

Wheel mounting and dressing must be performed by a qualified machine operator or shop technician following ANSI B7.1 safe use of abrasive wheels standards. Always power down and lock out the grinder before changing wheels. Inspect the wheel for cracks or chips before mounting and perform a ring test per standard practice. Never exceed the maximum RPM rating marked on the wheel.