CONSTANT PITCH TYPE; METAL, NON-METAL, FERROUS METAL CUT MATERIAL; BI-METAL BLADE MATERIAL; 15/16 INCH DIAMETER; 370 RPM (MILD STEEL), 185 RPM (STAINLESS STEEL), 245 RPM (CAST IRON), 495 RPM (BRASS), 555 RPM (ALUMINUM) SPEED RATING; V TEETH TYPE