FC 2-421N 18" .016" Soft Nylon Scrub Brush for Factory Cat Tomcat 52, 5100 Scrubbers, 6 Point Drive Plate. General duty and long lasting soft .016" diameter level white or black Nylon. These soft Nylon scrub brushes are great for light duty scrubbing of some polished hard surfaces and most delicate medium to soft surfaces. These soft nylon brushes will not harm polished flooring found in some plants and auto dealership showrooms. For a slightly stiffer Nylon for most surfaces such as grit impregnated epoxy painted floors, use our .030" diameter Nylon (FC 2-421N30). 17" diameter plastic block (18" scrub path) with a 6-point clutch plate (Please check your model for the proper number of points. We offer a 6 point and 8 point clutch plate. Use 18-421N for 8 pt.). Fits Factory Cat Model 52 and Tomcat 5100 floor scrubbers. Three brushes are required for models 52 and 5100. Priced Each. Replaces Factory Cat Tomcat 2-421N. Our Part Number FC 2-421N