VARIABLE PITCH; DIAMETER 6 INCH; 1-5/8 INCH CUTTING DEPTH; 35 RPM FOR CAST IRON, 55 RPM FOR MILD STEEL, 75 RPM FOR ALUMINUM/BRASS SPEED RATING; STEAM TREATED BI-METAL, M42 COBALT TOOL STEEL BLADE MATERIAL; CUT MATERIAL FERROUS METAL, NON FERROUS METAL, NON METAL; GREENLEE[R] BRAND