3M 7100304005 Cubitrona 3 Ceramic Cut-off Wheel 4 in 36+ Grit

Product Description

The 3M 7100304005 Cubitrona 3 Cut-Off Wheel is a 4-inch diameter, 0.125-inch thick abrasive wheel built around 3M Re-Engineered Precision Shaped Ceramic Grain. That grain features sharp, angular structures that continuously fracture to expose fresh cutting edges, allowing the wheel to run cooler and wear more evenly than conventional abrasives. Rated at 36+ grit, it is engineered for high-speed perpendicular cutting using the outer edge of the wheel. Fabricators, pipefitters, maintenance technicians, and metalworkers install and use this wheel in angle grinder applications where cut rate and wheel life are the primary concerns.

This wheel is suited for cutting stainless steel, mild steel, aerospace alloys, autobody and marine sheet metal, stainless steel tubing, exhaust pipes, clamps, and rusted fasteners. It is appropriate for both production and field service environments where frequent material changes and mixed-metal applications are common. The 4-inch format fits compact angle grinders commonly used in tight-access fabrication and repair work.

Key Features

• Re-Engineered Precision Shaped Ceramic Grain continuously fractures to maintain sharp cutting points and even wear
• Delivers up to 10% increased cut rate compared to Cubitrona II Performance Abrasives
• Removes up to 3x more material per wheel compared to Cubitrona II Performance Abrasives, reducing changeover frequency
• 4-inch diameter, 0.125-inch thick profile designed for perpendicular cuts using the wheel outer edge
• Compatible with stainless steel, mild steel, aerospace alloys, and general metalworking materials
• Runs cooler than conventional abrasive grains due to optimized mineral breakdown behavior

Compatibility

Designed as an OEM-style replacement and upgrade for 4-inch cut-off wheel applications on standard angle grinders used in metal fabrication, maintenance, and repair trades.

Installation Notes

Cut-off wheels must be mounted by a qualified operator following the grinder manufacturer's rated RPM specifications — never exceed the maximum RPM marked on the wheel. Inspect the wheel for cracks or damage before each use and do not use a damaged wheel. Wear appropriate PPE including a face shield, gloves, and hearing protection during operation. Follow ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels.

Technical Specifications

• Diameter: 4 inches
• Thickness: 0.125 inches
• Grit: 36+
• Grain Type: Re-Engineered Precision Shaped Ceramic
• Package Dimensions: 5.4 x 5.4 x 4.06 inches
• Package Weight: 2.95 pounds
• Unit of Measure: Box
• Minimum Order Quantity: 2
• UPC: 00638060900352

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100304005