Norton 66243528629 Cutoff Wheel 3 in Aluminum Oxide 60 Grit

Product Description

The NORTON 66243528629 is a Type 1 (flat) aluminum oxide cutoff wheel designed for precision parting and slotting work on steel. Measuring 3 inches in diameter and 0.035 inches thick with a 3/8-inch arbor hole, this thin-kerf wheel mounts directly on die grinders for controlled, accurate cuts. The resinoid bond holds aluminum oxide abrasive at 60 grit, providing an aggressive cut rate on ferrous material. Both sides are reinforced, supporting a maximum operating speed of 25,465 RPM. At 0.025 pounds, the wheel adds minimal rotational mass to the tool. HVAC techs, pipefitters, electricians, and metal fabricators reach for this wheel when tight-clearance cutting is required.

This cutoff wheel is suited for use with die grinders in applications where a standard 4.5-inch or larger wheel cannot fit. Typical scenarios include cutting threaded rod, conduit, small-diameter pipe, bolt shanks, and sheet metal tabs in confined spaces. The aluminum oxide abrasive and 60-grit rating make it appropriate for general-purpose steel cutting in residential and light commercial settings. The Type 1 straight-wheel profile is the correct geometry for cutoff work as opposed to grinding or blending.

Key Features

• 3-inch diameter, 0.035-inch thin kerf minimizes material loss during cuts
• Aluminum oxide abrasive with resinoid bond rated for steel applications
• Both sides reinforced for structural integrity at high RPM
• 25,465 maximum RPM — compatible with standard die grinder speeds
• 3/8-inch arbor hole fits common die grinder mandrels
• Type 1 (01/41) flat wheel geometry designed specifically for cutoff operations

Compatibility

Designed for use with die grinders. Verify that the die grinder free-speed RPM does not exceed 25,465 RPM before mounting. The 3/8-inch arbor hole requires a matching mandrel or arbor adapter.

Installation Notes

Mounting and use of cutoff wheels should be performed by qualified personnel familiar with abrasive wheel safety per ANSI B7.1 guidelines. Always inspect the wheel for cracks or chips before mounting and perform a ring test where applicable. Never exceed the rated maximum RPM stamped on the wheel. Wear appropriate eye and face protection, and ensure the work area is clear of flammable materials before cutting.