CM3137 - 6-Edge Carbide Milling Cutter Select this tungsten carbide milling cutter when removing cold plastics, thermoplastics, pre-form tapes, epoxy, paint, and more from concrete or asphalt surfaces. Specfications Specfications Outer Diameter – 3.20″ (81.2mm)Inner Diameter – 1.18″ (29.9mm)Width – 0.87″ (22mm)Weight – 1.1 lbs (0.5 kg)Materials – SAE steel, tungsten carbideTip Shape – RectangularNumber of Points/Edges – 6Shaft Size – 1″, 25mm, 28mm