IDEAL Nailbiter 7 8 in Woodboring Ship Auger Drill Bit Solid Bamboo Board The Pop Vent roof louver The Pop Vent roof louver product line has a manufactured one piece spun aluminum cap that is leak proof and corrosion resistant Helps soil retain moisture even through nail embedded lumber Dual induction heat treated ensures durability staying sharper longer Heavy duty lead screw designed for quick gripping and penetration power Resharpen for extended tool life Tempered high speed steel construction 7 16 In hex shank Drills through nails Series Name Nailbiter Sub Brand N A Bit Type Ship auger bit Bit Length 18 in Shank Size 7 16 in Shank Type Hex Material High speed steel Case Type Hard Quick Change Yes For Use With Power tool Hand brace For Use on Metal No For Use on Wood Yes Warranty 90 day limited Set Individual Individual Package Quantity 1 CA Residents: Prop 65 Warning(s) No Brand Model Compatibility N A Bit Diameter (Inches) 7 8 in