3M 7100304308 Cubitrona 3 Cut-off Wheel 4.5 in 60+ Grit

Product Description

The 3M 7100304308 Cubitrona 3 Cut-Off Wheel is a 4.5-inch diameter, 0.04-inch thick abrasive wheel designed for fast, precise cutting across a wide range of metals. It uses 3M Re-Engineered Precision Shaped Ceramic Grain, a proprietary molecular bonding technology that forms sharp, angular grain structures. These structures continuously fracture to expose fresh cutting edges, which keeps the wheel running cool and wearing evenly. The result is a wheel that cuts faster and lasts longer than conventional abrasive wheels. Sold in a box with a minimum order quantity of 2, this wheel is sized for standard 4.5-inch angle grinders used daily in metal fabrication, maintenance, and repair trades.

This cut-off wheel is suited for residential, commercial, and industrial applications wherever metal cutting is required. It performs on stainless steel, mild steel, aerospace alloys, autobody sheet metal, marine sheet metal, stainless steel tubing, exhaust pipes, clamps, and rusted fasteners. It is commonly used by fabricators, pipefitters, maintenance technicians, auto body technicians, and marine service professionals. The wheel makes perpendicular cuts using its outer edge, which is the standard cutting technique for angle grinder cut-off work. Compared to the 3M Cubitrona II Performance Abrasives, it delivers up to 10% increased cut rate and removes up to 3 times more material before needing replacement.

Key Features

• 4.5-inch diameter, 0.04-inch thickness — standard sizing for common angle grinders
• Re-Engineered Precision Shaped Ceramic Grain continuously fractures to maintain sharp cutting edges
• 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
• Runs cool due to even mineral breakdown — reduces heat buildup during extended cuts
• Effective on stainless steel, mild steel, aerospace alloys, exhaust components, and sheet metal

Compatibility

Designed for use on angle grinders accepting 4.5-inch diameter cut-off wheels. Suitable for cutting stainless steel, mild steel, aerospace alloys, and similar metal workpieces as stated by the manufacturer.

Installation Notes

Cut-off wheel mounting and use should be performed by qualified personnel following applicable ANSI B7.1 safety standards for abrasive wheels. Always power down and disconnect the grinder before mounting or removing a wheel. Inspect the wheel for cracks or damage before each use and never operate above the rated RPM marked on the wheel. Use appropriate eye protection, face shielding, and gloves during all cutting operations.

Technical Specifications

• Diameter: 4.5 inches
• Thickness: 0.04 inches
• Grit: 60+
• Abrasive Type: Re-Engineered Precision Shaped Ceramic Grain
• Package Weight: 2 pounds
• Package Length: 5.9 inches
• Package Width: 5.9 inches
• Package Height: 2.52 inches
• Unit of Measure: Box
• Minimum Order Quantity: 2
• UPC: 00638060900536

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100304308