Cut Diameter: 1/2"Overall Length: 4-3/4"Flute Length: 2"Shank: 1/2"Pilot Panel Bit Has A Drill-Through Point That Plunges Through The MaterialUsed For Window And Door Cutouts In Abrasive Insulation Materials, Plywood And PanelingSingle Flute Allows For Faster Feed RatesMicrograin Carbide Tips Provide Superior Wear Resistance And Long Life