Drill a pilot hole and countersink or counterbore for tapered screws or use to drill a clearance hole for straight screws.Drive Shank: 1/4″ Hex Power Bit ShankDrill Size: 13/64″ Ø HSS Tapered Twist DrillCounterbore Size: 3/8″ x 82°Recommended Screw Size: #10 (Tapered Screw)Replacement Twist Drill: 49410New design, now featuring a reusable hex shank for use with round shank tapered twist drills.-Note: Not compatible with Part #43032 Premium Rotating Stop Collar.
