3M 7100303859 Cubitrona 3 Ceramic Cut-off Wheel 3 in

Product Description

The 3M 7100303859 is a Cubitrona 3 ceramic abrasive cut-off wheel engineered for fast material removal and extended wheel life across a wide range of metals and alloys. At 3 inches in diameter and 0.035 inches thick, this wheel uses 3M Re-Engineered Precision Shaped Grain, a proprietary molecular bonding technology that forms sharp, angular ceramic structures. Those structures continuously fracture during use to expose fresh cutting edges, which lets the wheel run cooler, wear more evenly, and cut faster than conventional abrasive wheels. Rated at 60+ grit, it is suited for tradespeople and fabricators who need consistent, controlled cuts with minimal wheel swaps.

This cut-off wheel is used on the outer edge of an angle grinder to produce perpendicular cuts through metal workpieces. Typical applications include autobody sheet metal, marine sheet metal, stainless steel tubing, exhaust pipes, clamps, and rusted fasteners. It is also rated for use on aerospace alloys, making it a viable option for shops handling higher-spec materials alongside everyday mild and stainless steel work. Fabricators, maintenance technicians, and metalworkers in industrial, marine, and automotive environments will find this wheel appropriate for both production cutting and field service tasks.

Key Features

• Re-Engineered Precision Shaped Ceramic Grain continuously fractures to maintain sharp cutting points and reduce heat buildup
• Up to 10% faster cut rate compared to 3M Cubitrona II Performance Abrasives
• Removes up to 3x more material per wheel compared to 3M Cubitrona II Performance Abrasives
• Performs on stainless steel, mild steel, aerospace alloys, exhaust components, and sheet metal
• 3 inch diameter and 0.035 inch thickness suited for angle grinder applications requiring precision cuts
• Sold in packs with a minimum order quantity of 2

Compatibility

Designed for use with standard angle grinders accepting 3 inch cut-off wheels. Suitable for cutting stainless steel, mild steel, aerospace alloys, and similar metal workpieces as noted by the manufacturer.

Installation Notes

Cut-off wheel installation and use should be performed by qualified personnel following applicable ANSI B7.1 safety standards for abrasive wheels. Always inspect the wheel for cracks or damage before mounting, and confirm the grinder spindle speed does not exceed the wheel's maximum rated RPM. Power down and disconnect the tool before mounting or removing the wheel. Do not use the face of the wheel for grinding — this wheel is designed for edge cutting only.

Technical Specifications

• Diameter: 3 inches
• Thickness: 0.035 inches
• Grit: 60+
• Grain Type: Re-Engineered Precision Shaped Ceramic
• Package Weight: 1.04 pounds
• Package Length: 4.25 inches
• Package Width: 4.25 inches
• Package Height: 2.32 inches
• Unit of Measure: Pack
• Minimum Order Quantity: 2
• UPC: 00638060900314

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100303859