VARIABLE PITCH TYPE; FERROUS METAL, NON METAL CUT MATERIAL; M3 HSS TIPPED BLADE MATERIAL; 1-3/8 INCH DIAMETER; 1.375 DIAMETER - DECIMAL; 1-3/8 DIAMETER - FRACTIONAL; 1-3/8 INCH CUTTING DEPTH; DOUGLAS. BRAND; NUMBER OF TEETH PER INCH 4 TO 6; 1 PER PACK