Interleaf Abrasive and Non-Woven Flap Wheel 4" x 4" for linear finishing burnisher machines. Alternating pattern of coated abrasive and non-woven abrasive materials. Integrated 5/8-11 threaded hub. Compatible with Walter Line Mate, Metabo, Flex, Dynabrade, Cibo and Fein burnisher machines. Sets the grain on the metal and creates a finish grade pattern.