CONSTANT PITCH TYPE; METAL, NON-METAL, FERROUS METAL CUT MATERIAL; BI-METAL BLADE MATERIAL; 2-9/16 INCH DIAMETER; 130 RPM (MILD STEEL), 65 RPM (STAINLESS STEEL), 85 RPM (CAST IRON), 175 RPM (BRASS), 200 RPM (ALUMINUM) SPEED RATING; V TEETH TYPE