The Stanley FatMax heavy-duty saws have Bi-material handles which are screwed and ultrasonically welded for comfort and security and allow cutting at 90° and 45° The teeth are precision set to generate clearance of kerf for the blade to cut on both the forward and back stroke increasing cutting efficiency by 30 These 3 sided teeth are precision ground to offer razor sharp cutting edges at every stage of the stroke They are induction hardened to stay sharper for longer 7 TPI