PFERD Stem mounted specialty power wire brush is used for scuffing rubber and cleaning plastic molds, light removal of flashing, carbon, rust and paint. Conforms to contours of the workpiece providing a light deburring or cleaning action. Specification: Diameter (inches): 1-1/2; Stem diameter (inches): 1/4; Recom. speed [RPM]: 5,500 - 9,000; MSFS max. [RPM]: 14,000; Material: Stainless Steel Wire (INOX); 0.008.