IDEAL Nailbiter 3 4 in Woodboring Ship Auger Drill Bit 31 inch Vanity Top A: Outer dimensions are 27 Drill Driver Kit A: Outer dimensions are 27 in Acoustic Comfort: Helps reduce noise while improving indoor comfort year round Series Name N A Sub Brand Nailbiter 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 For Use on Metal No For Use on Wood Yes Warranty 1 year limited Set Individual Individual Package Quantity 1 Bit Diameter (Inches) 3 4 in CA Residents: Prop 65 Warning(s) No Brand Model Compatibility N A 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 Re sharp enable for extended tool life 7 16 In hex shank length 18 in Quick change shank design Full black oxide coating prevents rust