VARIABLE PITCH TYPE; BI-METAL BLADE MATERIAL; 4-1/8 INCH DIAMETER; 4.125 DIAMETER - DECIMAL; 4-1/8 DIAMETER - FRACTIONAL; 1-3/8 INCH CUTTING DEPTH; DOUGLAS. BRAND; NUMBER OF TEETH PER INCH 4 TO 6; 1 PER PACK; DIAMETER - DECIMAL - UOM IN; DIV-66 MODEL