3M 45194 451 Series Retainer Nut Disc Pad Face Plate, 7 in Dia, Disc Pad Hub Attachment White

3M™ disc pad face plate backs a same size fiber disc (sold separately) to provide firm support and the force required for grinding applications. It is used in conjunction with a disc pad hub (sold separately), which attaches to the power tool and held into place along with the appropriate disc using either a retainer nut (sold separately). Some face plates have ribbing on the bottom face. Ribbed face plates provide additional force when needed for optimal fracturing of the abrasive mineral. By reducing the area of contact or pressure per square inch (PSI), ribbed face plates increase the grinding pressure of the abrasive with the same amount of operator effort and extend disc life when dulling is a problem.
Plastic faceplate made with a soft engineered resin. Use with 7" x 7/8" center hole Fibre Discs for blending or light duty grinding applications. Use with 4-1/2" disc pad hub or 2-1/2" disc pad hub if more flexibility is desired.