3M 7100304004 Cubitrona 3 Cut-off Wheel 4 in 36+ Grit

Product Description

The 3M 7100304004 Cubitrona 3 Cut-Off Wheel is a 4-inch abrasive cutting wheel engineered for high-speed material removal on metal and alloy workpieces. Built with 3M Re-Engineered Precision Shaped Ceramic Grain, the wheel continuously fractures during use to expose sharp cutting points, which keeps the wheel running cool and wearing evenly. At 0.045 inches thick and rated 36+ grit, it is designed for thin kerf cuts with minimal heat buildup. Licensed tradespeople and fabricators in industrial, automotive, and marine service environments rely on this wheel for demanding cutting tasks.

This cut-off wheel is suited for perpendicular cuts using the outer edge of the wheel on a right-angle grinder. Common applications include cutting stainless steel tubing, mild steel stock, exhaust pipes, clamps, autobody sheet metal, marine sheet metal, and rusted fasteners. It is also rated for use on aerospace alloys, making it appropriate for aerospace maintenance and fabrication environments where grain consistency and wheel longevity are critical factors.

Key Features

• Re-Engineered Precision Shaped Ceramic Grain fractures continuously to maintain sharp cutting edges and reduce heat
• 0.045-inch thickness delivers thin kerf cuts with reduced material waste
• Up to 10% faster cut rate compared to 3M Cubitrona II Performance Abrasives
• Removes up to 3 times more material per wheel compared to 3M Cubitrona II Performance Abrasives
• Compatible with almost all metals including stainless steel, mild steel, and aerospace alloys
• Designed for perpendicular cuts on right-angle grinders using the outer wheel edge

Compatibility

Designed for use on right-angle grinders accepting 4-inch cut-off wheels. Suitable for cutting stainless steel, mild steel, autobody and marine sheet metal, exhaust pipes, clamps, rusted fasteners, and aerospace alloys.

Installation Notes

This wheel is installed and operated by qualified tradespeople familiar with angle grinder safety procedures. Always inspect the wheel for cracks or damage before mounting and confirm the grinder RPM rating meets or exceeds the wheel rating. Wear appropriate PPE including a face shield, gloves, and hearing protection during operation. Never use the flat face of the wheel for grinding; use only the outer edge for cutting.

Technical Specifications

• Wheel Diameter: 4 inches
• Wheel Thickness: 0.045 inches
• Grit: 36+
• Grain Type: Re-Engineered Precision Shaped Ceramic
• Package Weight: 1.8 pounds
• Package Length: 5.4 inches
• Package Width: 5.4 inches
• Package Height: 2.68 inches
• UPC: 00638060900345

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100304004