Tough, Durable, and Heat Resistant Our 3M™ Cubitron II™ Cloth Belt 966F features precision shaped grain that is designed for moderate pressure applications. The water resistant Z & Y-weight, polyester backing gives excellent strength to the belt that allows for use with liquid-based lubricants, but can be run in a wet or dry applications. These attributes make the polyester cloth 966F cloth belt a good match for projects that require an equally durable abrasive belt.The Science of 3M™ Precision Shaped Grain 3M™ Cubitron II™ Cloth Belt 966F’s precision shaped grain (PSG) signifies a major advancement in abrasive technology. PSG is a ceramic mineral designed using a proprietary process to enhance toughness and hardness of the grain. 3M scientists then went one step further and precisely engineered the mineral to form uniform triangular shaped grains that continually fracture into super-sharp points and edges that slice through the substrate, rather than gouging or "plowing" like conventional abrasives. PSG creates a super-fast cut and lessens heat build-up in the workpiece, reducing heat-related stress cracks and discoloration. Moreover, because PSG stays cooler and sharper, it lasts longer than conventional abrasives.Get the Belt You Need Abrasive belts come in many different widths and lengths and are used on a variety of different belt sanding tools for many different metalworking applications. 3M offers a broad selection of belts to fit most industrial belt sanders. Wider belts are used with wide belt sanders for flat finishing—to remove and smooth rough cut metal sheets,slabs or add a grain pattern to stainless steel sheets. Medium-width belts are generally used on a backstand for weld removal or for removing casting gate.