Overall Diameter: 1/2"Overall Length: 2-1/2"Cutting Edge Length: 1"Shank: 1/4"Bearing Diameter: 1/2"Flush Trim Bits Are Used For Laminate Work Or For Template And Pattern WorkDouble Flute Design Allows For A Smoother FinishTop Mounted Ball Bearing Rides Against Template For Pattern RoutingMicrograin Carbide Tips Provide Superior Wear Resistance And Long LifeShielded, Compact Ball-Bearing Pilot Guides Bit Along Edge Of Material