CF2118 – 8-Spike Carbide Pin Flail Cutter 8-spike ultra-premium grade tungsten carbide pin flail cutters.Select this pin style for your toughest asphalt and concrete removal projects. Features Specfications Specfications Outer Diameter – 2.30″ (58.42mm)Inner Diameter – 1.00″ (25.4mm)Width – 0.24″ (6mm)Weight – 0.17 lbs (0.08 kg)Materials – SAE steel, tungsten carbideTip Shape – CylindricalNumber of Points/Edges – 8Shaft Size – 20mm, 22mm, 3/4″, 7/8″