Authentic Makita T.C.T Circular Saw BladeSize: 7-1/4″Teeth: 38TFor Mild SteelModel: A-85438Hole Size: 20mmMax Speed: 5,800/minFor Cutting: Metal Pipes 2 Thru 5mm, Angles or Channels 4 thru 7mm, Hoop 2.5 thru 7mm