Norton 66243530064 Surface Grinding Wheel 4in 100 Grit

Product Description

The NORTON 66243530064 is a Type 1 surface grinding wheel designed for precision stock removal and finishing on a range of ferrous and non-ferrous materials. Built with a silicon carbide abrasive and a vitrified bond, this wheel delivers consistent cutting action and thermal stability under load. It measures 4 inches in diameter and 1/2 inch thick with a 1/2 inch arbor hole, and it carries a fine grade, I hardness rating. Rated to 8,120 RPM, it suits CNC cutting tool machines, cylindrical grinders, ID grinders, and surface grinders in production and tool-room environments. Licensed tradespeople and skilled machinists are the primary installers and operators.

This wheel is engineered for grinding 300 series stainless steel, titanium, aluminum, brass, bronze, copper, gray iron, masonry, and natural stone. Its silicon carbide composition makes it particularly effective on hard, brittle, and non-ferrous materials where aluminum oxide wheels would load up or glaze. The vitrified bond holds grit securely during aggressive passes while allowing controlled breakdown for a consistently sharp cutting face. It fits standard surface grinder spindle setups accepting a 1/2 inch arbor. The 39C Type 1 series specification is 39C100-IVMT.

Key Features

• Silicon carbide abrasive — suited for non-ferrous metals, stainless steel, titanium, masonry, and natural stone
• Vitrified bond construction for stable, consistent material removal and controlled wear
• 100 grit, fine grade — delivers smooth surface finishes in final-pass and finishing operations
• Type 1 flat wheel profile with no recess — mounts directly to standard spindle arbors
• Non-porous wheel structure limits loading on gummy or soft materials
• 8,120 RPM maximum speed rating for safe use on production grinders

Compatibility

Compatible with CNC cutting tool machines, cylindrical grinders, ID grinders, and surface grinders accepting a 1/2 inch arbor and Type 1 wheel configuration. Suitable for grinding 300 series stainless steel, titanium, aluminum, brass, bronze, copper, gray iron, masonry, and natural stone.

Installation Notes

Surface grinding wheels must be installed and dressed by a qualified machinist or grinding machine operator following ANSI B7.1 safety requirements for the use, care, and protection of abrasive wheels. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before each use and perform a ring test; do not mount a wheel that produces a dull thud. Confirm the machine spindle speed does not exceed the 8,120 RPM rating stamped on the wheel before operating.