CONSTANT PITCH TYPE; METAL, NON-METAL, FERROUS METAL CUT MATERIAL; BI-METAL BLADE MATERIAL; 1-9/16 INCH DIAMETER; 220 RPM (MILD STEEL), 110 RPM (STAINLESS STEEL), 145 RPM (CAST IRON), 290 RPM (BRASS), 330 RPM (ALUMINUM) SPEED RATING; V TEETH TYPE