Norton 66243529516 Cutoff Wheel 4 in 60 Grit Aluminum Oxide

Product Description

The NORTON 66243529516 is a Type 1 resinoid-bonded aluminum oxide cutoff wheel designed for straight cutting on steel. Measuring 4 inches in diameter and 0.04 inches thick with a 3/8-inch arbor hole, this wheel is built for use with die grinders in production and maintenance cutting applications. Both sides are fiberglass-reinforced for added integrity during high-speed operation. The wheel is rated to a maximum of 19,100 RPM and carries a hardness code of O, indicating a medium-hard bond suitable for cutting mild and carbon steel stock.

This cutoff wheel is suited for professional tradespeople and fabricators who work with die grinders in tight-clearance or detail cutting situations. The 4-inch diameter and thin 0.04-inch kerf make it effective for cutting bolts, rod stock, pipe, and sheet metal sections where minimal material removal is needed. The aluminum oxide abrasive at 60 grit delivers consistent cut initiation on ferrous materials in both shop and field environments.

Key Features

• Type 1 (flat) profile for straight-line cutoff applications
• 60-grit aluminum oxide abrasive optimized for steel cutting
• Resinoid bond provides durability at high operating speeds
• Both sides fiberglass-reinforced for structural integrity
• Thin 0.04-inch wheel thickness minimizes kerf and heat buildup
• Rated to 19,100 RPM for compatibility with standard die grinders

Compatibility

Designed for use with die grinders accepting a 3/8-inch arbor hole. Intended application is cutting steel as specified by the manufacturer designation A60-OBNA2.

Installation Notes

Mount the wheel only on a die grinder whose maximum RPM meets or exceeds the wheel rating of 19,100 RPM — never exceed the wheel's rated speed. Inspect the wheel for cracks or chips before each use and discard any damaged wheel immediately. Wear appropriate eye, face, and hand protection during operation. Ensure the guard is in place on the grinder before starting the tool.