MILWAUKEE 12"" 18 TPI THE TORCH SAWZALL BLADE (5 PACK) 48-00-5789. A UNIQUE COMBINATION OF RELIEF ANGLES FORMS A RADIUS ON THE BACK OF THE TOOTH THAT REDUCES STRESS BUILD-UP DURING CUTTING AND SUBSTANTIALLY EXTENDS BLADE LIFE. A PRECISE MANUFACTURING PROCESS CREATES A SHARPER CUTTING EDGE ON EACH TOOTH FOR A FASTER CUTTING BLADE. A THICKER MORE RIGID BLADE BODY RESISTS FRACTURING AND BENDING FOR MAXIMUM DURABILITY. THE 1"" TALL BLADE BODY REDUCES BLADE TWISTING FOR STRAIGHTER MORE ACCURATE CUTS. MATRIX II BI-METAL TEETH FOR GREATER DURABILITY. INCLUDES (5) 12"" 18 TPI THE TORCH SAWZALL BLADES.