Abrasive Structure Engineered to PerformPart of the CF abrasive family, the 3M™ Trizact™ Cloth Belt 327DC features a matrix of resin and aluminum oxide mineral engineered to perform from day one until the end of the belt's life.Macroreplication is the science behind the geometric brick-and-channel abrasive structure on this belt. The abrasive bricks contain up to four times as much mineral as comparable products. As the mineral breaks down, fresh mineral is exposed at a uniform rate. Channels between the abrasive bricks reduce heat build-up and remove swarf. Its low pressure/easy breakdown profile means it resists loading when working with aluminum, zinc, brass and other softer metals.The result is an abrasive product that cuts and finishes consistently from the beginning to the end of its life - all the way to the backing.Designed for Demanding ApplicationsOriginally designed for intermediate finishing applications - removing casting scale and minor defects from orthopedic medical implant devices and cast or forged turbine blades - these belts' more consistent cut and longer life in demanding applications make possible more efficient manufacturing processes and lower cost of operation in many other metalworking applications.Consistently Performs to SpecThe Trizact™ 327DC cloth belt does not need to be broken in or worked harder at the end of its life. So it's easier to work with and it reduces rework from out-of-spec finishes.This belt works best running dry centerless applications. It features an untreated, flexible X-weight cloth backing and is available in ½-inch to 26-inch widths. It is designed specifically for 80-600 grit flexible abrasive applications.3M Science. Applied to Making Metal Perform3M technology allows us to design abrasives with varying shapes and formulations, to control the level of breakdown, cut, finish and life.